Environment Network 2025: Investigating Environmental Outbreaks

November 17, 2025November 16, 2025 girlymicro General, Guest blog, Healthcare Science, Microbiology (Clinical) air, decontamination, Environmental IPC, Infection Prevention and Control, IPC, microbiology, sampling, surfaces, water

It’s the most wonderful time of the year! It’s time for the annual Environment Network meeting, where we get together to talk all things environmental microbiology; sharing new research and experience to improve practice. And your guide for the conference this year, live blogging the morning session, is the token immunologist in the group, Dr Claire Walker.

What is the environment network?

Before we get onto todays’ content, a little introduction to what the Environment Network is.

The Environment Network works to support people in clinical, engineering and scientific roles who are interested in environmental infection prevention and control (IPC) and/or the built environment

Do you want to know more about what to do with your water screening and air sampling results? Are you keen to understand the evidence behind equipment cleaning and the role of the environment in healthcare associated infection?

Then welcome to the Environment Network!

This is a network for people in clinical/scientific/engineering roles within the NHS and other associated organisations who are interested in the role of environmental infection prevention and control in preventing infection.

The aim of the network is to support infection prevention and control professionals involved in commissioning, environmental audit, water, air and surface testing within their Trusts. By working together we can share best practice between Trusts; as well as circulating the latest evidence and discussing personal experiences.

What are the aims of the network?

To support the development of member networks
To provide events where shared learning can be supported
To permit sharing of experiences and best practice to improve clinical interventions
To support and share research in order to achieve improvements in evidence based practice

What is our remit?

Environmental testing and monitoring within healthcare environments
Environmental audit and risk assessment
Surface decontamination
Ventilation within healthcare environments
Water management within healthcare environments
Environmental outbreak monitoring and control

Check out the website for more details: https://environment-network.com/

On to today. First up we have Gavin Wood, an authorising engineer for water who acts as an independent advisor to Trusts. He is covering the fascinating topic of water associate outbreaks and what we can ask of our water safety groups during an outbreak. There should always be a policy which covers how to organise the estates teams and the water safety groups – covering who is responsible for each area during the outbreak. Regular outbreaks are caused by organisms like Legionella and Pseudomonas, but might include non-tuberculosis causing mycobacteria. Detection of these organisms during routine screening is reported to the water safety group to assess potential risk. Most pathogens that we look at will grow within a certain temperature range, so maintaining cold water as cold, and hot water as hot is essential. What we really don’t want is warm water stagnating in the system as the pathogens can thrive in it. On top of this, we need chemical control of organisms – mostly silver and copper ion systems. Stagnant areas of warm water are pockets where the pathogens might thrive so flushing the system and chemical controls are key in maintaining a healthy water supply in hospitals. Controls that are effective for indicator organisms that we routinely test for, like legionella, tend to be effective for any other outbreak organisms. In an outbreak situation the first port of call is the Legionella risk assessment which considers the efficacy of temperature and chemical control. After this, in line with guidance, all trusts should refer to their Water Safety Plan which is contains the detail on actions to take when results are outside the expected limits. Most of the time the authorised engineer already has the answers because the system is repeatedly routinely tested.

Like any system in a hospital, it is vital that the risk assessment and training is up to date. As Gavin says if we haven’t covered everything in the risk assessment, and if the water policy hasn’t been recently reviewed then the whole system is vulnerable. External audit by authorise engineers ensures the system remains optimal. Investigation of an outbreak focuses on the patient pathway – where has the visitor or patient been on their journey through the hospital. This process finds the clues to identify the source of the environmental outbreak. Surprisingly one of the main pieces of evidence comes from review of training and competence records, is everyone appropriately trained and acting in accordance with policy. If in doubt, going an witnessing monitoring and maintenance tasks can provide essential information in a high pressure outbreak situation. Gavin drives home how important practice is in this – we need this information as much on a random rainy Tuesday as much as we need it during a Legionella outbreak!

Our next talk comes from Karren Staniforth from UKHSA. She is a clinical scientist and UKHSA IPC specialist adviser, and is talking to us about the pros and cons of different outbreak investigation techniques. Karren invites us to imagine painting a busy ward in different colour 10cm squares, every single surface with a cotton tip swab. Imagine how long that could take and just how many squares you would end up with! Even if you took 200 samples, how many squares have you failed to test? Usually we can only take 20-40 samples…. So even if they all come back negative, it doesn’t necessarily mean there isn’t an organism there – its just that the sampling didn’t find it. The chances of going in and finding nothing is quite high, but if you put a patient in that room for a week, they will almost certainly find that organism (not that we recommend that as a testing method!).

Karren reminds us that reading environmental plates is quite an art and different from clinical samples, it’s a different skill and guidance from experts is essential. Clinical diagnostic laboratories aren’t accredited to process environmental samples and the staff aren’t trained to process and analyse this work. Commercial companies can come and do testing for you, and they are extremely good at routine work. Bespoke work is harder to commission, and that’s where knowing the network can really help! So if you have an outbreak of something unusual, it’s hard to find the information on what level of environmental organisms – like aspergillus – are ok, and what constitutes a danger to patients.

The questions becomes, what type of samples do we want to take and why? We need to understand basal levels of indicator organisms to work out when to act. Building on what Gavin has shared this morning, you need to look – really look- at what is happening in your environment. Karren reflects on how useful an audit can be but we don’t go into an outbreak with the information already in front of you, so your audit probably won’t ask exactly the right questions. Epidemiology provides the answers – which organisms and then which patients are affected, where and when? Identifying common exposures can be easy when infections match case distribution e.g. sequential patients with the same infection in the same room. However some are less obvious like laundry delivered to multiple sites causing infection clusters which are miles apart or commercial products that might only impact high risk patients in very low numbers, but at multiple sites across countries. This can be exceptionally difficult to trace. Though remember not every exposure results in colonisation and infection, and even if exposure is universal some patient groups are more likely to develop infections than others.

Knowing what kind of sample to take is essential, especially when sample numbers are limited. Negative results can be just as useful as positive results – and identifying the source of the outbreak is as much detective work as it is learning to read plates! Karren reminds us – ‘You don’t always need sampling, somethings are just WRONG!’.

To close the first session, we have Louise Clarke who knows everything there is to know about proper ventilation. Ventilation is essential the movement of air within a system. The law tells us we must provide ventilation under the Healthy and Safety at Work Act, and building regulations set a minimum standard for ventilation. The main reason for good ventilation is to have a safe and comfortable environment; to remove odours, to control temperature and importantly to protect from harmful organisms and toxic substances. We have natural ventilation (like opening a window!), mechanical ventilation which pushes air around the building and a mixed mode – a combination of the two. The preferred method for ventilating a hospital remains natural ventilation, something which really shocked the group. It might work well on a windy day but it certainly doesn’t cover all areas and some times of year, like winter, it’s really no good at all.

Like Lou says, simple is best. When we talk about ventilation, we need to ask what is the issue we are looking at? Human elements are usually a key element to understanding problems in ventilation – you need to think about when the issue arose and who was involved? Often there is a significant time lag between the problem starting and it’s detection in real time. You can be left scrabbling around for details long after the issue began. Lou walked us through the potential information sources to considering during an outbreak, including design records. Which tend to be a little less useful than you would imagine, considering they often tell you the purpose the room was designed for 30 years ago – perhaps not so relevant now! Echoing the sentiments of Karren earlier, one of the most important things you can do is go physically and take a look – not an audit, just turn up and use all your senses!

To kick off the session after a much needed cup of tea (Earl Grey, hot!) we have Dr Mariyam Mirfenderesky who is talking about the challenges of managing fungal outbreaks. Candidozyma auris (note the new name!) is probably one of the most difficult outbreak causing organism to manage. To help with this a Clinical Expert Reference Group was established in March 2025. Candida species are the dominating fungal pathogens of invasive fungal disease and account for >85% of fungaemia in Europe and the United States. Candidozyma auris was first identified in 2009 from a Japanese patient with ear discharge, and is a critical WHO priority fungal pathogen. It is fluconazole resistant and has a propensity to cause healthcare associated infection outbreaks. There are 6 independent clades, with clade 1 dominating in England. Mariyam walked us through the identification of the first neonatal case of C.auris from an eye swab – it was found in two infants, five weeks apart with no direct contact between the children. Fortunately both were colonisation with the fungus only. She then discussed the safety measures that should be in place to manage this difficult pathogen – particularly focusing on why the current cleaning protocols are insufficient to manage this threat. Her final points considered how to act when you detect C.auris – you must be decisive and act!

If you’d like to know more about C. auris, check out this blog post from earlier this year:

Candidozyma auris the New Kid on the Fungal Block: What is it and why should we care?

Next we have Dr John Hartley who is talking to us about investigating environmental surface mediated outbreaks – what you can’t see may still hurt you. Using the classic movie ‘the fiend without a face’ as a metaphor for IPC, John introduced the idea of modes of transmission between individuals. It feels like a simple problem, its just cleaning and handwashing after all! But we see there is a complex person-organism-environment dynamic system, and as John says, there is always a well known solution to every human problem – neat, plausible and wrong! John highlights the importance of continual surveillance and knowing ‘where the fiend is’. The controls are based on a four pronged approach – clean, replace, destroy or rebuild.

By way of a case study, John told us about his experience of managing adenovirus outbreaks in a paediatric BMT ward. This is a very common virus causing 5-10% of febrile illness in early childhood. Almost everyone has had it, and it can establish latency which can reactivate during BMT. More often it causes severe morbidity and mortality in these patients who can develop hepatitis. What you can’t tell is if the child caught adenovirus from the environment or if it has reactivated post latency. However, whole genome sequencing (WGS) can resolve 1-3 SNPs across genomes – its not like looking for a needle in a haystack, its rather like looking for a needle in the whole of Texas. But WGS can be used to confirm or refute cross infection events.

Of course the next question is, what can be done? Visual assessment is not a reliable indicator of surface cleanliness, John described the varied methods which can be used to detect adenovirus. Then we need to develop the right tools to manage it – including development of environmental PCR as a measure of cleaning efficacy by GirlyMicro herself! Finishing on a Dr Who reference to delight a crowd of scientists is always a win – even if it is comparing adenovirus to the scariest episode, the weeping angels! Of course, when monitoring adenovirus, the most important advice is ‘Don’t Blink’.

To close the morning session we have Dr Sam Watkin discussing research tools to help predict the future of outbreaks. Sam began acknowledging the current challenges facing preventing transmission of environmental organisms. In his PhD he aimed to identify how microbes disseminate through the clinical space, if the starting contamination site determined how is was disseminated and if the usage of space influenced microbial transmission risk. IPC is often retrospective to the aim was to develop research tools to allow the development of prospective knowledge. Sam used cauliflower mosaic virus DNA markers as a surrogate for pathogens, and followed its movement around two different units. It was shocking to see how far this benign organism could spread in such a short time.

I think if we take away anything this morning it’s that nobody likes the new name for C.auris, and death, death to recirculating air conditioning units!

The morning was followed in the afternoon by a series of case discussions in order to help implement the learning from the morning, help everyone get to know each other, and support the sharing of peer to peer learning. The case discussions this year included:

Case discussion one (Facilitated by Dr John Hartley):
- Seek and remove: approaches to source control for environmental surface mediated outbreaks
Case discussion two (Facilitated by Professor Elaine Cloutman-Green):
- How to implement a multi-disciplinary approach to investigation of water borne outbreaks
Case discussion three (Facilitated by Louise Clarke):
- Interpretation of ventilation data and applying it to ventilation risk assessments
Case discussion four (Facilitated by Dr Sam Watkin):
- Determining the role of equipment in outbreaks: how do you investigate?
Case discussion five (Facilitated by Karren Staniforth):
- Introducing new cleaning process: what should you consider?
Case discussion six (Facilitated by Dr Claire Walker):
- Choosing new equipment and furnishings: what questions should you ask?

It was truly inspiring to hear the buzz in the room that all of the discussion created. Thank you to Mr Girlymicro (Jon Cloutman-Green) for being in charge of photography, and to all of our speakers and facilitators for making the day happen. Also, massive shout out to Ant De Souza for pulling the day together, Angela McGee for making sure we all turned up to the right place at the right time, Mummy Girlymicro for running the reception desk, and to Richard Axell for supporting all of the tech on the day.

Now it is all over, the only thing to do is to tap our feet until we all get to meet again in 2026, although the presentations and discussion sheets should go up some time during 2025. Until then however, if you want to know more either head to the Environment Network website to look at info from previous years, or read some of the other blog posts linked to environmental IPC down below.

Environment Network 2024: Environmental risk assessment what do we need to know?

Environmental Matters: Why are environmental risk assessments so tricky?

All opinions in this blog are my own

Candidozyma auris the New Kid on the Fungal Block: What is it and why should we care?

July 11, 2025July 12, 2025 girlymicro Microbiology (Clinical) antimicrobial stewardship, C. auris, fungi, health, Infection Prevention and Control, mycology, public-health, science, The Resident

Following on from the wonderful fungal post on fungal toxins (mycotoxins) last week from Dr Sam Watkin, I wanted to follow up with a post on the latest fungi of interest from a clinical perspective, Candidozyma auris. This fungi is getting more and more coverage, as well as becoming more important in healthcare, so I thought I would take a moment to talk about what it is, what it does, how to find it, and what to do when you do.

In a pre-pandemic world, which feels like a long time ago, Professor Lena Ciric was working at a media fellowship, and as part of that work wrote an article for the BBC on Candida auris, which has subsequently been renamed to Candidozyma auris.

https://www.bbc.co.uk/news/health-49170866

This article came out in 2019, so maybe C. auris is not so new but in terms of the numbers of cases we are seeing within the NHS, and the changing prevalence out in healthcare systems more widely, it is definitely more of a feature and a concern than it was back then. Reflecting this change the UKHSA guidance Candidozyma auris (formerly Candida auris): guidance for acute healthcare settings which was originally published in 2016, has been updated recently (19th March 2025). It feels timely therefore to put something out in order to raise awareness of this organism and the unique challenges it presents.

NB I can neither spell nor pronounce Candidozyma auris and so we’re sticking to C. auris from this point out.

https://www.nejm.org/doi/pdf/10.1056/NEJMra2402635

What is it?

Yeast are a type of fungus, and Candida species are often associated with colonisation (present without causing infection or symptoms) on skin, in the mouth or within the vagina. If they grow up to high levels they can cause an infection called candidiasis, which often causes symptoms like itching or discharge. Common infections include Thrush and nappy rash. Candida albicans is one of the most common yeast infections seen within the healthcare setting, and in this kind of environment more serious infections can be seen, especially those linked to the blood stream, and occasionally serious organ infections.

C. auris was originally believed to be a relatively new species of genus Candida, as it often behaves in a similar way to the other Candida species. The reason for the name change to Candidozyma auris, was because, although in many ways it behaves similarly to its Candida cousins, it does have some differences in the way it behaves. These include features such as intrinsic antifungal resistance and growth conditions, that make it useful to characterise in a way that acknowledges it as a novel genus in its own right.

What is the difference between C. auris and the other Candida species that you know?

Many Candida species can cause severe infections within specific settings, however C. auris has been known to not only cause a wide variety of infections (bloodstream, intra-abdominal, bone and cerebrospinal fluid (CSF) infections), but ones which lead to significant mortality rates, with an estimated rate of 30 – 72% in severe infection reported in the literature.

Infections can occur in any patient group, although UK outbreaks have been most frequent associated with adult settings. Augmented care settings (such as intensive care and transplant settings) are at highest risk due to the vulnerable, long stay nature of many of their patients. Management of any infection occurring is complicated by the fact that C. auris has developed resistance to many available classes of antifungals, with emergence of pan-resistant strains, which add to the mortality risk.

C. auris also appears able to both easily transmit and colonise the skin of patients, with most patients being colonised before they go on to develop any subsequent infection. These colonised patients can then contaminate their healthcare environments, and unlike other yeast species, C. auris is able to survive and represent a continued risk within the environment for prolonged periods, all of which contributes to outbreak risk.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11123812/pdf/microorganisms-12-00927.pdf

Geographic distribution

It was first identified in the ear canal of a patient in Japan in 2009, but has since been found globally, and is now separated into six genetically distinct clades:

Clade I = the South Asian clade, first detected in India and Pakistan
Clade II = the East Asian clade, first detected in Japan
Clade III = the South African clade, first detected in South Africa
Clade IV = the South American clade, first detected in Venezuela
Clade V = Iran (recent)
Clade VI = Singapore (recent)

Within the UK from January 2013 – December 2024, 637 C. auris isolates were reported through laboratory surveillance in England, with 59 (9.3%) isolated from blood culture specimens. It should be noted that not all labs report, and for some time many labs could not accurately identify C. auris, or actively screened for it, and so this may represent under reporting. A routine whole genome sequencing service is not currently available for typing, although it can be undertaken linked to specific outbreaks. Hopefully this will be up and running soon to better understand how the different clades discussed above are represented in the UK, and whether any of them are linked to more challenging outcomes than others.

https://www.gov.uk/government/publications/candida-auris-laboratory-investigation-management-and-infection-prevention-and-control/introduction-and-background

Where do we find it?

Due to its global distribution, overseas patients may also be at increased risk of introducing C. auris into UK healthcare settings, with one centre reported 1.6% of their overseas admission detected as colonised, with patients coming from the Middle East, India and Pakistan, showing higher levels of recovery.

UKHSA guidance suggests we should screen any patient who has had an overnight stay in a healthcare facility outside of the UK in the previous year, as well as patients patients coming from affected units in the UK. This sounds relatively straight forward, but it can be challenging to identify patients who have had an overnight stay overseas on admission if they are not being admitted from overseas. It also relies on clear communication from other centres that they have an issue, if we are to screen patients from impacted units. Many centres have therefore decided to screen all patients on high-risk wards, such as intensive care, to address some of this unknown risk.

Risk factors for developing C. auris colonisation or infection should be considered when deciding on screening strategies and the list within the UKHSA guidance includes patients who have experience:

healthcare abroad, including repatriations or international patient transfers to UK hospitals for medical care, especially from countries with ongoing transmissions
recent surgery, including vascular surgery within 30 days
prolonged stay in critical care
severe underlying disease with immunosuppression, such as HIV and bone marrow transplantation
corticosteroid therapy
neutropenia
malignancy
chronic kidney disease or diabetes mellitus
mechanical ventilation
presence of a central-venous catheter or urinary catheter
extra-ventricular CSF drainage device
prolonged exposure to broad-spectrum antibiotic or antifungal use
underlying respiratory illness

How do we find it?

Screening is undertaken by taking swabs from the axilla (armpit), groin and nose, although different patient groups may require additional screening. Patient surveillance is important for two reasons:

1) to understand which patients are colonised in order to introduce additional precautions to limit risk of transmission to other patients or the environment
2) to support improved patient management but allowing patients to be put on the most effective antifungal if they go on to develop any signs of yeast infection, in order to improve outcomes

If a patient is detected as positive, other screening sites can help manage individual patients and so UKHSA say additional site screening should be considered:

urine (especially if there is a urinary catheter in-situ, including intermittent self-catheterisation)
throat swab
perineal swab
rectal swab (in paediatrics we would consider a stool sample instead)
low vaginal swab
sputum or endotracheal secretions
drain fluid (abdominal, pelvic or mediastinal)
vascular access sites
wounds or broken skin
ear
umbilical area (neonates)

Swabs should ideally be processed on chromogenic media (colour changing agar plates) and fungal colonies confirmed using MALDI ToF or a validated PCR (my previous post on PCR may help with this). It can also be helpful to incubate plates at 40^oC, as C. auris can grow as much higher temperatures than its Candida cousins, which can help with identification. If grown then the yeast should be stored in case you need them for future typing to help in understanding transmissions or outbreaks.

Why should we care about it?

Due to the high mortality rates for patients who develop infections, and the issues with choosing antifungals that work, it is really important that we know when we have patients who are colonised with C. auris. Controlling spread, even if patients don’t become infected, is incredibly important for the individual. This is because if a patient is detected as positive they won’t be de-alerted (have IPC precautions stopped) at any point and so it will impact them for months, if not years. These IPC precautions include isolation (keeping separate from other patients), and sometimes only being nursed by specific members of staff. These patient and staff impacts are so significant they’ve even been acknowledged in popular media, with a three episode arch covering C. auris in The Resident on Netflix (season three, episodes 18, 19 and 20).

Are there differences in how you might treat?

As I’ve already said, C. auris is pretty resistant to treatment compared to its Candida cousins. UK data indicates that isolates are resistant (don’t respond to) to the normal first line treatment of fluconazole, and often to other antifungals within the azole class. Some isolates have been resistant to other commonly used antifungals, such as amphotericin B (20%) and echinocandins (10%). Resistance to other antifungals can also occur whilst infections are being treated, and so it is important to monitor sensitivities (whether the drug works) and send to reference labs in order to understand the most appropriate therapy. Its resistance profile is one of the reasons the WHO have highlighted C. auris as a priority fungal pathogen for further research and to highlight clinical risk.

Its not just antifungals that are important however, antimicrobial stewardship is important in general, as prolonged exposure to broad-spectrum antibiotics and antifungal agents are risk factors for both C. auris colonisation and infection (again this links back to the high risk patient groups impacted). Therefore, doing a better job of monitoring and controlling antimicrobials in general is likely to have a beneficial impact on C. auris risk.

Challenges with environmental control

One of the many things I love about the new C. auris guidance is its focus on multidisciplinary input ‘Healthcare workers are encouraged to work in multi-disciplinary teams, including Clinical Infection Specialists and IPC teams, to risk assess and support the management of patients infected or colonised with C. auris‘. I think this is so important, especially with an organism that is so challenging and can present such a high risk.

Environmental control is a particular issue for C. auris as we know it’s ability to survive and can grow at higher temperatures than many other fungi, means that it is likely to survive well in the environment. It also has the ability to form environmental biofilms, which can mean it is difficult to impact effectively using standard cleaning techniques, and once within the environment has been been detected for 4 weeks.

Within the UKHSA documentation, environmental contamination for C. auris has been found on the following surfaces during outbreaks:

beds, bedside equipment, bedding materials including mattresses, bed sheets and pillows
ventilation grilles and air conditioning units
radiators
windowsills and other horizontal surfaces
hand wash basins, sink drains and taps
floors
bathrooms doors and walls
disposable and reusable equipment such as ventilators, skin-surface temperature probes, blood pressure cuffs, electrocardiogram leads, stethoscopes, pulse oximeters and cloth lanyards

Basically most of your healthcare environment, whether fixed or movable features. In order to help stop the transfer from patients to the environment, via staff, the use of personal protective equipment is really important. Therefore the use of gowns and gloves is suggested. Single use and disposable equipment should also be used whenever possible, and patients should be kept in single, ensuite rooms, to minimise the risk of C. auris escaping from within the bed space to adjacent clinical environments. Any items within the space should either be cleanable with a disinfectant, or disposed of after a patient leaves. One thousand ppm of available chlorine should be used for cleaning, but needs to be used in concert with an appropriate contact time if it is to be effective.

WHO fungal priority pathogens list to guide research, development and public health action 2022

Outbreaks

Most detections of C. auris cases detected are colonisation rather than infection (though colonisations can lead to subsequent infections). Within the UK there have been 5 significant outbreak of C. auris, each with over 50 cases, in addition to many sporadic introductions of single cases, frequently from overseas. Many of these have been in London or the South of England, and have resulted in considerable disruption to services over a prolonged period of time. This disruption can, in itself, be a risk to patients as it can result in delayed access to care. Outbreaks are also financially significant, with outbreaks reported as costing over £1 million for a service impacted for 7 months.

Although outbreak numbers are currently small, they are becoming more frequent, and even if infrequent have significant impacts. The need to control this risk before it becomes endemic within the UK health system is therefore significant. It is crucial therefore to collect more data and understand transmission routes of C. auris better.

Despite probable under reporting, it is clear that C. auris is becoming more common within UK healthcare settings, and has the ability to both cause significant issues for both individual patients and for services, due to outbreak impacts. Although fairly new on the scene there is increasing recognition of how C. auris could change fungal risks within healthcare, and even long stay residential settings. If we are going to adjust approaches in order to react to the new risks C. auris represents we need to both update our current practices, and invest in research, in order to learn how to do things even better. This is the reason that it feels important to share a post that is a little more technical than normal, both to help myself by learning more, but also to ensure that we are having conversations about an organism that has the ability to impact us all.

jmm001820 Download

Summary of recommendations C auris 2025 – GOV.UK Download

WHO fungal priority pathogens list Download

All opinions in this blog are my own

Celebrating the Hospital Detectives: Why I describe Infection Prevention and Control as the detectives within our healthcare drama

April 10, 2025April 10, 2025 girlymicro General, Microbiology (Clinical), Science Communication Agatha Christie, Columbo, Coumbo, Detectives, Environmental IPC, hercule poirot, Infection Prevention and Control, inspector morse, Investigation, jessica fletcher, miss marple, sherlock holmes, Tommy and Tuppence, Writing

This weekend I’m off to Torquay for the Agatha Christie Spring Literary Festival. It will involve talks, a statue unveiling and even a ball! Some of you will know that I’m a massive Agatha Christie fan and love a good murder mystery. It’s part of the reason my ambition for when I retire is to finally have time to write some of the pathology murder mysteries that I have drafted out. I’m planning a three book series called The Murder Manuals. Anyway, that’s some way off but I still love to indulge in a bit of Agatha joy.

Whilst thinking about it this weekend, when I should have really been packing instead, it occurred to me that maybe one of the reasons that I love my job so much is because, in many ways, working in Infection Prevention and Control (IPC) is like working to solve real life mysteries and challenges on a daily basis. You come into work every day not really knowing what the future will hold and spend your days trying to uncover who the criminals (microorganisms) are and how to prevent future ‘crimes’, in the form of infections. This feels even more true having recently posted about how a forensic science lecture I went to looked at solving crimes. So, whilst my head is all linked to the detective process (I suspect I’m more Miss Marple than Hercule Poirot, although really I’d love Mr Girlymicro and I to be Tommy and Tuppence) I thought I would write about why I believe IPC professionals make the best healthcare detectives.

Beginning at the end

Like most good crime dramas, we in IPC, often make our entrance towards the end of a story when we things have already happened. We then have to work backwards to understand what’s happened as well as working forward to prevent any future risk (‘crimes’). Now, the point we get involved can range a bit. Just like in detective dramas, if the crime is obvious the police get involved early. Sometimes however, Miss Marple suspects a crime has occurred (think Sleeping Murder) but everyone else can be slow to get onboard.

In the world of IPC sometimes there are very clear events that need to be looked into. An outbreak for instance is traditionally described as 2 cases linked in person, place and time, or a single case of a significant infection, such as Ebola. This works pretty well most of the time but there are circumstances where using this definition can mean it takes you longer to identify an outbreak, or ‘crime’, has occurred. An example of this is when outbreaks are linked to an intermediate environmental source. This means that you may have low level numbers of cases which don’t appear to be linked in time, or even person, but are just linked to location. I’ve written about the importance of environmental IPC before, but this is one of the reasons it can be particularly tricky.

Need to understand the rules

In every detective story there are rules. If you’re in a Christie novel there will be a denouement, if you’re watching Columbo you will always see the murder at the start, and if the murderer is a female she will always be the person Morse tries to flirt with badly at least once. Infection Prevention and Control is no different. There are unwritten rules that you need to learn and which will help guide you on your way. Vancomycin Resistant Enterococci outbreaks will often have an environmental component. Norovirus outbreaks within staff often have a secret staff member who vomited in the toilet and told nobody. Pseudomonas aeruginosa outbreaks make people ask ‘have you checked your water?’ All of these things give you a way to start investigating and a set of questions to begin with.

Now, here comes the word of warning. Just like The Murder of Roger Ackroyd broke the rules, so do bacteria and other outbreak causes not always behave the way they are supposed to. Just like any good police drama with a rebellious detective, you need to know the rules but also know when to ignore them. Know when to switch tack and think that your MRSA outbreak may actually be linked to your ventilation system, not direct hand to patient transmission. Be neutral enough when looking at your data to not ignore the clues that are there. Red herrings will be present and distract you, so know when to call a fish a fish.

Start broad and narrow down

One of the best ways, with any investigation, is to start broad and narrow down. This enables you to avoid diving down rabbit holes and missing other pathways that should be investigated. Very rarely can you turn up to a country house murder and exclude most of those present, and as Hercule Poirot famously states “it is always wise to suspect everybody”, and the same is true with IPC investigations.

Ask yourself, why do I think that there’s something happening? How do I know that cases occurring at the same time are actually linked? How are my surveillance systems set up to support identification of low levels of cases over prolonged periods? How sure am I then that a ‘crime’ has actually been committed? Once the body as been found, in terms of looking for sources, where do I get my information from? Do I consider just other patients, or patients and families, or patients, families and the environment, or even patients, families, environment and staff. This, all before you even start to consider how different organisms behave in different types of patients. In a country house murder you need to consider those above stairs as well as those below, and in stories like the A.B.C. Murders, you even need to consider those who came and rang your doorbell.

There are so many moving parts within healthcare and we need to ensure that we are capturing as much of that landscape as possible when we start our investigations. Starting broad supports this, but you also then need to know the key moments to start excluding options so that you can eventually get to the depth needed to support interventions and change. Eventually you have to have the scene where you commit and name the murderer. Within IPC, events such as outbreak meetings can really help with this, as unlike our favourite detectives, we can’t keep all the information to ourselves right to the very end. These meetings bring people together to both help gathering information but also to decide on how to focus next steps.

A plethora of unreliable witnesses

In A Murder is Announced Miss Marple states, ‘Please don’t be too prejudiced against the poor thing because she’s a liar. I do really believe that, like so many liars, there is a real substratum of truth behind her lies’. One of the things that is often quite difficult to pin down during IPC investigations is….what is the truth? Truth is often seen as definitive but in reality truth relates back to the lens through which the individual sees the world. For instance, if you asked me what I was doing at 7am last Wednesday I wouldn’t lie, but I would have to offer some form supposition as I can’t actually remember precisely. The other complication is that those directly involved may be even less able to recall their own roles. If I’m sick in hospital days can merge into one and I’m focussed on my physical reality rather than taking in my environment. This is all before we take into consideration the fact that we may be providing sedatives and other medications that could impact recall. Would I remember that one of my visitors mentioned my niece had diarrhoea……..probably not.

Within IPC investigations no one is likely to remember every physical action, which is why audit can be a helpful addition, in order to have an external person capture trends. In other scenarios the actual witnesses to the event can’t speak, for instance ventilation gauges that may have fluctuated or alarmed (is that a voice?) to an event that no one wrote down or reported. This is especially challenging when you are trying to get to the bottom of grumbling outbreaks that have been going for some time, but also is a particular challenge linked to infections with organisms that may not become apparent for months, such as some surgical site infections or infections with pathogens like Aspergillus. Memory can make individuals particularly poor witnesses in these scenarios and good record keeping and notes are essential to support look back investigations (investigations where you are looking back to capture risks and event detail).

Need to know which tools to use

If you only interview half of the witnesses in your case, you’ll be lucky to get even half of the story, as it will all depend on which people hold the information. On some occasions you will luck onto all the answers with the first witness, but is this a risk you want to take? The same can be true in IPC investigations if you don’t think about the tools or sampling methods you want to access from your toolkit. Is your main focus on using bacterial culture? Do you have a method that will work even if the patient is on antibiotics? If you are looking for a viral cause, what method is best? PCR is not PCR is not PCR. You can look for RNA, or DNA, you can extract from different volumes and different types of samples. The pros and cons of all of which need to be considered. Putting together a sampling strategy in response to an investigation is like choosing the pieces of a jigsaw puzzle whilst knowing that you are not going to have all of the bits. You want to choose pieces that give you the best chance of accurately guessing what the picture is.

In IPC there are various pieces of documentation that will help with thinking in this area. Documents like the UK Standards for Microbiology Investigations (UK SMIs) can help guide thinking linked to which samples might be useful to take. UKHSA also has various documentation linked to outbreak investigation with specific organisms and interpretation criteria, such as measles, C auris, and TB. At the end of the day however, just like your detective walking into a murder scene, you will need to work out how to apply that guidance to what you see in front of you.

It’s all about the clues

Once you have investigated and questioned your witnesses then you need to be able to work out from your clues which pieces are useful and which are your red herrings and may lead you astray. Like all investigations the most important thing is to be methodical but you then need to make time to be able to think and reflect. Poirot famously once solved a case without leaving his front room, just by being able to sit and question those involved. I’m not saying that this is something we should try in terms of IPC, but I do think it holds some lessons for us about the power of thinking time. Especially when you are in the midst of an outbreak there is often a real drive to be seen to be doing something, responding to everything, and constantly doing more. After 20 odd years in micro/IPC I think I’m beginning to think that Poirot may have been onto something.

If you are constantly changing or adding in responses it can be really difficult, even if you reach resolution, to know which thing you did made the difference. Early on in an outbreak it can be easy to rush into making recommendations prior to having gathered all the information you need. It sometimes feels good to call an exposure meeting the minute you get the information that an event has happened. For instance, you may have days to respond in the case of something like a chickenpox (incubation period 8 – 21 days), before those patients become a risk to anyone else. Therefore waiting to call a meeting until you have gathered all the clues, until you know everyone’s immune status, levels of exposure etc, can mean that your meeting is so much more effective in managing any risk. Waiting until you have a decent action plan for where you might search for clues, i.e. sample, may mean you find the answer so much more quickly then having to go in for multiple attempts. Taking a breath and putting thought before action may mean you get to the final result so much faster. So utilise those Little Grey Cells!

Not everyone takes kindly to be investigated

IPC should not be about blame, but just like the house guests in a country house murder may not take kindly to a visit from Inspector Japp, some occupants of your ward may be less than happy to see IPC walking up to the nurses station. Although I talk about the similarities between IPC and detectives, we should not be feared and act like police, or worse than that judiciary. Often the reason why Jessica Fletcher gets further faster in finding the murder than the police at the scene is because she is seen as just another friendly visitor rather than someone looking to find fault. Her focus is on building and utilising relationships in order to gather information. She is often seen by the other witnesses involved as being part of their team, and the outputs of her investigations are often linked to co-production of outcomes by sharing information, rather than going it alone.

In general, as in many areas of working life, relationship building is key. You see Jessica all the time in Cabot Cove, not just when there’s been a murder. That means that by the time she finds the body she already knows most of the players and has built up relationship capital with those involved. This enables her to sometimes ask the challenging questions. I believe the same needs to be true for IPC. If clinical teams only see us when things go wrong, they are automatically going to be somewhat defensive. If they see and work with us when times are going well, as well as less well, they are more likely to feel we’re in it together with shared ownership. All of which means we may also get to the source that much faster when we need to.

Sometimes there’s a twist in the tail

There are a number of famous Agatha Christie stories where the murder victim turns out to not actually be dead, I won’t spoil them here. The same can be true for IPC cases. There are certain organisms, of which Adenovirus is my personal favourite, that can both cause primary infection and then go latent and reactivate later. Often this reactivation is linked to immune status, and of course many patients in hospital have immune systems that are doing less well. These present challenges as you can look like you have a cluster of cases but, due to the type of patient, they can all be independent findings that happen to cluster together. So, without the right investigations you can call ‘murder’ when actually there is no corpse. Being happy to hold your hands up and step down when you have new information is an important trait, but knowing to get the testing done to enable you to do so is even more so.

The other scenario that can happen is, as Sherlock Holmes famously said, “When you have eliminated the impossible, whatever remains, however improbable, must be the truth“. There will be things that have been done, behaviour that has occured, that you would never imagine or predict. Over the years I’ve found a lizard in a bathtub, olive oil used as skin care by parents, and all kinds of things in fridges and freezers, just as the tip of this iceberg. Things that out in the real world would probably not be a risk, but in the healthcare world can lead to all kinds of issues, none of which would be on my primary list of questions when trying to identify a source. The world continues to surprise me, and therefore in the world of IPC keeping enough of an open mind to to respond to the unexpected is essential.

It’s a team sport

Poirot has Hastings. Morse has Lewis. Sherlock has Watson. Tuppence has Tommy, and Jessica has most of the population of Cabot Cove. Solving crimes benefits from teamwork and IPC is no different. I’ve spoken about the importance of relationship building but doing IPC investigations well benefits from more than even that. One of the key ways these partnerships work is by creating the space where the discussion and reflection we’ve already talked about can happen. In healthcare, which is far from a contained setting with only a handful of key players, being part of a team can also provide vastly more eyes and insight into what happens in reality.

The Hawthorne effect is a type of human behaviour reactivity in which individuals modify an aspect of their behaviour in response to their awareness of being observed

One of the reasons that it’s important to undertake a team response within IPC is that if I turn up, a stranger or less frequent visitor on the ward, then those on the unit may behave differently because I’m there. If you see IPC hanging around a sink, for instance, then you may suddenly focus way more on your hand hygiene efficacy then you would otherwise. If I go to speak to a family, they may say different things to me than they would to the bed space nurse they see everyday. In order to get the full picture I may not always be the right person to ask the questions. Being fully integrated, being seen as part of the team, or having relationships with people that are, can make all the difference in terms of the success of your activity. Everyone benefits from having a Hastings to send in to ask questions from time to time.

No greater satisfaction than being part of the denouement

I don’t know about you but I just love the moment that everyone gathers at the end of a Christie novel and detective starts the process of walking everyone through all of the different clues, red herrings, and witness statements. The moment when you discover if you’ve picked up on everything that was on offer to you, and even more than that, the anticipating of waiting to hear if you’ve put it all together in a way that a) works and was b) actually correct.

I feel the same way when I finally have that moment when I crack the case, when I find the source, or even just get to the point where I understand a tricky result. The hallelujah moment when you look down at the jigsaw pieces you have and you can finally see the full picture. It’s the reason that some of our favourite investigative successes live on for years in teaching and case studies. I will talk about the case of the Norovirus and Biscuit Tin to anyone who will listen even now. The settings may be different but every detective, whether in a novel or in healthcare, loves to regale others with their exploits. We just can’t help ourselves. My excuse is that sharing the learning helps is all. That said I’m off to attend a talk called ‘How to kill people for profit’. I’m assuming it will give me all the tips I need to be the next cozy murder success and maybe even weave in the odd IPC detective drama moment into the mix.

All opinions in this blog are my own

Turning a Day Dream into a Reality: Trying out a technique to make concrete steps towards a secret ambition

January 3, 2022January 3, 2022 girlymicro Education, General, Science Communication Co-production, Healthcare Science, Infection Prevention and Control, public engagement, Science Communication, scientific writing

I’ve been thinking a lot about next steps in recent weeks. Thinking about what it is that I want, what do I want to achieve. I’ve been really fortunate to have achieved a lot of professional success. I’ve attained my Consultant post, which has been the aim for 16+ years. The question that I keep getting asked therefore is, what next?

Now I’ve been saying, and I think this is true, that I need to be in a holding pattern for a while. Like most people during the pandemic I’ve become tired and burn out and even when we get to the point where life becomes the ‘new normal’, whatever that is, it will take time to recover. The problem being that although those words come out of my mouth, my brain has other plans and ideas.

I’m beginning to think that this next goal will be more personal and less professional. It feels like a long time since I had a goal that was for the whole of me, rather than for Dr Cloutman-Green. So I’m going to write it here. Not because I think I will manage to achieve it any time soon, but because I want to make a commitment to myself. I want to write a book. I know, I know, it would make me spit out my tea too, but there I’ve said it. I’ve put it out into the world.

There are two schools of thought on whether sharing this is a wise move or not. One suggests that by sending it out into the world is the first stage in crystallising a thought or dream into reality. The other is that you are setting yourself up to fail as if you don’t then take the steps needed you appear as someone who can’t deliver, thus actually making your dream harder to achieve. I’m a glass is half full kind of girl and so I’m going with the making my dream more likely option. I am also being very clear and boundaried about what I am saying. I am saying I wish to write a book, that is under my control. I am not stating that such an item would ever get published, let alone earn money, as those things are less under my remit. My dream is to have the time and energy to create and produce, anything more would be a bonus.

Now, I acknowledge that my grammar is appalling and I don’t claim to be the best writer in the world. Writing the blog for the last year however has reminded me of how much I have always just loved to write. I find it cathartic and a much needed creative outlet. During the pandemic, where opportunities to network have been limited, I’ve also found it a great way to feel connected. I know I come across as very extroverted but in reality there’s little I love more than having my own space and so this blog has allowed me to connect without feeling the pressure of in person.

Now I wouldn’t be me if I didn’t have a plan. Afterall, a dream needs action in order to become a reality. This is something that is completely outside of my knowledge base so the first steps are about thinking and research in order to inform action:

Further formulate the concept i.e. what kind of book? I actually have 2 ideas. One is turning this blog into a book format. The second is that I also have an outline structure for a Pathology murder mystery. I’m excited by both, but right now I think option 1 is more achievable with my current resources (Norman I also haven’t forgotten about our project – sorry for being rubbish)
Review what I already have. If I go for a non fiction book I need to undertake a gap analysis of what I have, what can be modified and what new content is needed. For the fiction version I need to start getting my concepts down so that I know how viable they are
What good resources are available to me? This is an ambition of plenty of people and there is a wealth of information out there. I need to explore, quality assess and curate what there is so I dont waste time and energy making unforced errors. There is no point in reinventing the wheel, modify it so it works for me, but let’s not start from square one.
Undertake some appreciative enquiry. Success is often about asking the right questions and making the right connections in order to increase your odds. I have some friends in this field but not in the area I’m thinking of working in. I need to be brave and put myself out there to gain insight into the ‘Known Unknowns’
Use the knowledge and information gained to put together a project plan. Establish some small steps that can make the project as a whole less overwhelming
Establish my success criteria. What does success look like? For right now it’s the process of creating that will feel like a success with a stretch goal of sharing what is produced, but that might change based on what I discover
Research your audience. If I decided to include sharing what is produced as part of my success criteria who would like to see such a book? If I were to share the content what would that look like and what would be needed?

For me any dream is achievable, the main thing is to be realistic about what the dream actually is and what resource and commitment it will take. Dreams don’t just happen, they require work and so to understand what is needed takes some time. That is not a reason to not aim high. So here I am, at the start of the process knowing it might take years but excited to see where it might take me. Dream big people and take it one day at a time.

All opinions in this blog are my own

Girlymicro 2021: A Year in Review

January 1, 2022January 1, 2022 girlymicro Academic Life, General, Microbiology (Clinical), Microbiology (Research), Science Communication Healthcare Science, Infection Prevention and Control, public engagement, Work Life Balance

Firstly, before I begin I want to start by saying thank you all so much for being here. This blog and all of you have really helped with many of the challenges described below. It’s given me a focus and output that has enabled me to both reflect and feel like I have a voice. Despite not having been able to post much in November and December ~10,000 of you have visited the blog this year, with over 13,500 views. Numbers I would never have dreamt of. This community, your responses and sharing have really kept me going. My sincerest hope for 2022 is that we will be able to continue to find a way through together, supporting each other and sharing the learning.

It seems to be the thing to do a New Years post. I’m not really big on New Year, I’m much more of a Christmas kind of girl but this year has been A LOT and so I thought I should take a few minutes at the start of 2022 to at least acknowledge it happened; and to give some reflection on all it contained: the good, the bad and the oh so very ugly.

I want to end in a positive way so we are going to take a deep breath, drink a cup of tea and do this is reverse order.

The Ugly

I discovered this year that I am oh so very human. I used to think I could push through anything with enough willpower. It worked for my PhD, it worked for FRCPath. I have discovered that that doesn’t work for pandemics.

I think part of it is something to do with a lack of a defined end point. With an end point you can plan, you know when you can take breaks, you can plan downtime. There has been nothing planned about this. My first break away was the one and only time I’ve been pinged (I’m basically a hermit) and so my time away involved self isolating in a very small cottage, albeit with an amazing view. Christmas, which is my joy, involved working and being broken by the time it arrived. The constant responsive mode means you feel like you achieve nothing and that the ‘Control’ in Infection Prevention and Control has been lost and you don’t know when it will come back.

The other part of it, for me, is that there has been hardly any of the diversity that is the thing I love about Infection Prevention and Control. When the non SARS CoV2 work does escalate up the priority list it is on top of everything else and is therefore a burden rather than problem to be solved. It is the diversity of the role in normal times that energises me. This year therefore, has just felt like one constant drain on my batteries rather than the normal peaks and troughs that give recovery time.

So what am I going to do about it? Long and short I need to carve out some professional me time. I can’t manage a third year of just pushing through. I’ve hit a wall and something needs to change. I need to find time to write a paper, use a pipette, write a talk in more than 5 minutes. I need to feel like I’m making a difference again, making an impact. I need to end 2022 feeling like I’ve moved forward, even if the pandemic is still with us. I think collaboration for this is key, working together is one of the things I’ve missed, so if you’re up for a project give me a shout.

The Bad

The worst and most shocking thing of 2021 was that we lost Lee, the guru who made the grammar on this blog bearable, but who also helped run the Environment Network and some of my other events. He went from fine to deceased in a matter of weeks and to be really honest it’s been quite the wake up call. He was ~10 years older than me and still had so very much to give to the world. I don’t want my tombstone to say ‘She pulled a lot of hours’ I need to make time for the people and activities I love. I hadn’t seen him anywhere near enough since the pandemic started as I have prioritised work so much. Going into year 3 that has to change.

In 2020/1 I learnt to fail, spectacularly. I learnt to fail at managing my workload, my inbox and my deadlines. I’ve failed to manage to keep on top of, let alone ahead of anything. I’ve learnt that this leads to 3am panic and exhaustion and after a year I’m trying to also learn to just let it go. Being a perfectionist in a pandemic is not a survival strategy. Assuming that everyone is judging you as harshly as you are judging yourself is not a wellness technique. Just working harder no longer cuts it, as to be honest there are simply just not enough hours in the day.

Over the last 2 years I’ve let myself be defined by work. I’ve stopped running and I basically am working, rushing to catch a meal or trying to sleep in order to prepare to do it all again. Between getting shingles and the number of angio oedema flares my body has basically let me know that this is not sustainable. To be honest I don’t think I could continue this way even if I wanted to, my body feels like it has given up on me. I need to cut it a break and heed the warning signs.

Having discovered I am not professionally or physically superwoman I have decided that I need to make some decisions about putting me first. No one benefits if I break, not me and not my team. I need to do my hours and come home in time to do something other than eat and sleep. I need to have some time for me, be that to read a book or go for a run. I cannot work every weekend. I need to trust that others will not judge me for stepping away and that the only person who is holding me to this standard is me. I’m going to walk in the sun, take bubble baths, drink tea and learn to be kinder to myself. I’m also making a commitment to give explicit permission to others to do the same, so that our head weasels have less power over us.

The Good

Well enough with the hard stuff, its really easy to forgot with so much challenge, the amount of good that has actually occurred. All the more reason to take the time to reflect. Times of challenge are when we learn most, not just in terms of academic knowledge but also about ourselves, and I have learnt a lot that I intend to build on in 2022.

I started 2021 announcing that I’d been awarded the British Empire Medal in the Queens New Years Honour list. Something that was always going to be difficult to top.

In this respect 2021 out did itself and was the year that I firmly set down roots to continue at GOSH, after a period of not really knowing what my future would hold and where my career would go. I got my dream job, as a Consultant Clinical Scientist in Infection Prevention and Control. I have a solid foundation for my future, I no longer need to have a plan A B and C about where I might end up. I work in an organisation aligned to my values with 2 amazing teams and in a job I love. I will always be grateful for that.

There have been some great moments from an education perspective. I’ve done podcasts, made it onto power lists and had mentees grow and develop in ways that have made me beyond proud. There are some wonderful projects in the pipeline that will give opportunities to my team and I believe will support change across the infection workforce. One of them is on whole genome sequencing and if you’re interested in learning more check it out and input on what you’d like included here. Being able to plan for the future is key to my mental wellbeing and so I’m so excited to have something that forces me to look forward, not just be in the moment.

Project Nosocomial has continued to grow and despite, or possibly because of, the unique demands on artistic and scientific collaboration in 2021 delivered some truly exciting new content. We ran 2 festivals to raise awareness of antimicrobial resistance. We ran comedy shows, quizzes, panels and featured poetry, drag, opera and gamification. If the pandemic has shown me anything its that we need to work harder to engage with and have dialogue with the public and wider communities. Science communication should no longer be seen as an indulgence but a central part of our roles. In 2022 I’m determined to continue to fight for this work to be valued and to increase the impact of our conversations.

So there you have it, despite feeling I’ve been standing still there has been a surprising amount of moving forward. I have learnt a lot and to summarise what from that I want to bring into 2022, it is simply this:

All opinions on this blog are my own.

My Sunday Afternoon Rage – The Mask Goes Over the Nose, People!

December 29, 2020January 26, 2021 girlymicro General, Microbiology (Clinical), Science Communication Healthcare Science, Infection Prevention and Control, SARS CoV2

You may or may not know this about me, but I’m a pretty big sports fan. Not the kind that remembers statistics or can quote drivers/players, but a screaming-at-the-TV-or radio in-support-of-my-team kind of fan. When I lived at home in Birmingham, I had a season ticket for the Holte End at Villa Park to see my boys (Aston Villa); now the main live sport I get time to see close up are the London Games when the NFL comes to town (I’m a Green Bay Packers fan and they’ll never visit). Sport is a massive release for me: Watching Sunday night NFL football and F1 is something that my hubby and I really enjoy doing together as these are our shared passions (N.B. in our household, I’m the big general sports fan rather than him).

So imagine what my Sundays in 2020 have become. Imagine that at the end of every race you sat and watched images of Max Verstappen engaging in face-touching whilst wearing a mask that is barely positioned to cover his nose.

The content of the interview is not important, but he rubs the edge of his mask, then moves his finger to his eye, then messes with the vent, then re-positions it by touching the front. All in a video that lasts less than 55 seconds.

The NFL is even worse. At least in F1 drivers are – for the most part – wearing masks, even if they appear to not know how to control their face-touching impulses. Within the NFL, the numbers of coaches not wearing masks at all has led to fines for individuals and for clubs. The NFL is big money in the US. A number of teams have been shut down for SARS CoV2 outbreaks, and yet the behaviour has continued.

So, Why I am Writing this Post?

Every week I get on tube trains to travel to work. During the first lockdown there was ~90% compliance with appropriate mask wearing. In recent weeks, compliance was less than 50% and I’ve seen all the variations in the image below and more. All this whilst I’m having to live with increasing numbers of clinical cases and receiving daily reports of the same elsewhere. I’m writing this as, although some of it is because of a decision to be non-compliant, I think a lot of it is about the fact that we are not really getting the message out about why appropriate mask wearing is important: not just box-ticking to have one near your face. I don’t think we’ve taught people about which bits of masks are contaminated and that touching those areas is where a big portion of the risk lies. This is why I was pretty much against selective mask use when it was introduced. Universal mask use is much more scientifically valid, but it’s not a panacea and actually increases personal risk if not done appropriately.

I’ve seen all of these variations and more

Why Does it Matter That I Wear My Mask Like a Necklace?

We know respiratory pathogens on the outer surface of masks may result in self-contamination. In my PhD thesis back in 2015, I discussed this as a potential route for hand/face contamination. However, in the context of a respiratory pandemic, and mass mask-wearing without training, the implications are much more significant.

The T-zone includes the mucous membranes within the eyes, nose and mouth. It has been noted that, even within a healthcare setting, members of staff engage in frequent face-touching, with one study noting that healthcare workers touched the T-zones a mean number of 19 times over a two-hour period, which may place healthcare workers at risk of organism acquisition/transfer. Additionally, organisms could survive on the skin for minutes to hours and thus present a source of hand contamination when touched in the future, with a possible spread to patients and surfaces.^{(Journal of the American Board of Family Medicine. 2014;27(3):339-46)}
My thes i s (2015)

*BMC Infectious Diseases* **volume 19**, Article number: 491 (2019)

Fabric masks can protect by filtering up to 50% of particles, reducing exposure. The risk from inhalation is not the only one, however: viruses can survive on skin, paper and fabric, for hours in the case of SARS CoV2. The virus can also infect by self-inoculation into the eyes and contact with other mucous membranes, for instance people rubbing their nose after removing the mask. The above paper used fluorescent particles to demonstrate how contamination of the external of a mask works, and to help visualise the risk of moving that contamination around the mask and skin. If masks are not put on and taken off appropriately, if they are not worn the right way, and if we don’t wash our hands and think about how we touch our faces, we put ourselves at risk. We make the problem worse.

Back to Sport

Role modelling is so important in raising awareness. Teams and individuals have a massive platform to get this message out. People will say that sportsmen and women are not medically trained, so why should they take responsibility to get this message out? I would say that sports like F1 and NFL have huge levels of access to the worlds best clinicians; they have huge levels of medical investment and there is no doubt that these individuals will have been trained and taught. So they need to lead by example and enable me to get back to using Sunday afternoon sport as an escape, rather than a lesson in IPC failures.

Top tips for safe mask wearing:

Wash your hands or use a minimum 70% alcohol gel before putting on (donning) and removing (doffing) a mask.
If using a fabric mask, ensure that you are washing between each use.
If you remove a disposable mask, throw it away: both sides will be contaminated and if you store it you just move that contamination around.
Make sure your mask covers your nose and mouth.
Be aware of face-touching and use hand hygiene if you accidently contaminate.
Know that the outside of your mask is NOT CLEAN!

All views on this blog are my own