Ana J

Cloth can block droplets and aerosols, and layers add efficiency. Filtration efficiency for single layers of different types of cotton cloth in a bioaerosol (0.2 µm) experiment was between 43% and 94%, compared with 98% to 99% for fabric from disposable medical masks (2). In a summary of similar observations, single layers of scarfs, sweatshirts, T-shirts, and towels were associated with filtration efficiency of 10% to 40% in experiments using NaCl aerosol (0.075 µm) (3). For tea towel fabric, studied with aerosol-sized particles, filtration efficiency in experiments using a bacterial marker was 83% with 1 layer and 97% with 2 layers, compared with 96% for a medical mask (4). In experiments using virus, 1 layer of tea towel had 72% efficiency and 1 layer of T-shirt fabric 51%, compared with 90% for a medical mask (4). A 2020 study confirms that some fabrics block clinically useful percentages of transmission, even for aerosols and even in single layers; multiple layers improve efficiency (5).

The idea that 'cloth masks are good only for droplets' still circulates. Many have said this, but it is wrong.

Recommendations about cloth masks, from spring 2020, were based on aerosol evidence

www.acpjournals.org/doi/10.7326/...

#WearTheBestMaskAvailable
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Long Covid in NHS staff going undiagnosed, study suggests | Nursing Times Read about a new study revealing the prevalence of long Covid symptoms among the NHS workforce and the lack of formal diagnoses.

www.nursingtimes.net/respiratory/...
1/3 of nurses have #longcovid the issue is this not disabled adding to the welfare bill. It’s unsustainable because the Tories failed to mitigate for airborne transmission and Labour continued their policies & ignored WHO advice.

How denial of airborne COVID transmission broke the world - Healthy Debate Five years later, the greatest basic science failure in generations caused the pandemic harms highlighted by people across the political spectrum, and broke our social cohesion.

Five years on and we’re still going round and round with whether Covid is airborne. There’s no scientific doubt. Denial broke us.
healthydebate.ca/2025/03/topi...

🎯🙏

Came to this late, but it’s a must-read for anyone who wants to continue to live on Earth!

Just a quick note to say how grateful I am for the C/LC community here.🙏

I know that not everyone has moved over from Twitter (not everyone has the spoons).

And while it's great to see many of the big accts engaging regularly here, let's remember to help the smaller accts w/ visibility & reach. ✨

Hello lovelies! This is the info that EveryDoctor has shared with MPs so far - all briefing docs available here. Make a cup of tea first, there’s a lot here!

everydoctor.org.uk/the-doctors-...

Your advocacy is invaluable. Thank you. 🙏

Hello 👋

👋

I think the community is starting to build up here? It’s reassuring to see so many coming over. 😊😷

Really great resource, thank you. 👇

H5N1 could combine with seasonal flu to create a more dangerous virus strain Major disease-tracking platform predicts the risk of a mutant variant will increase five-fold this winter

I didn't realise I'd been quoted in this article (regarding the risk of a coinfection with seasonal flu and H5N1 potentially leading to a reassortment event).

www.telegraph.co.uk/global-healt....

Welcome. It’s good to see you on here. Thank you for everything that you do. 🙏

Mycoplasma infections increase in the post COVID group. Either the non-COVID group lives in another planet or COVID does something to the immune system. 🤷🏻‍♂️

Hi 👋😷

Hi tern 👋 😷

Long COVID science, research and policy - Nature Medicine This Review outlines the current state of scientific evidence on long COVID, discusses its impacts on patients, health systems, economies and global health metrics, and proposes a forward-looking rese...

My first post has to be about #LongCOVID

🔹 400 million individuals affected worldwide
🔹 $1 trillion in annual economic costs
🔹 Countless lives & communities shattered

The time for a comprehensive policy and research response is now!

Details in our review here www.nature.com/articles/s41...

I do not understand the lack of prevention for children.
Is it that people cannot admit they were in error...

www.sciencedirect.com/science/arti...

Massive difference in prevalence of #LongCovid in North versus South of England. Hugely important study just out emphasising the need for more research, treatment, markers for diagnosis and treatment stratifications- We CANNOT continue to ignore this devastating condition🧪

Designing and optimizing clinical trials for long COVID Long COVID is a debilitating, multisystemic illness following a SARS-CoV-2 infection whose duration may be indefinite. Over four years into the pandem…

@patientled.bsky.social have released a paper on designing and optimising clinical trails for #LongCovid, with guidance on inclusion, participation, design and treatment www.sciencedirect.com/science/arti...

The impact of indoor air quality on the transmission of airborne viral diseases in public buildings

The 🇦🇺 National Science and Technology Council (NSTC) has released a new report on indoor air quality and its impact on viral transmission.

www.chiefscientist.gov.au/sites/defaul...

🛟🩺

@elhopkins.bsky.social

Hi Esther.

It’s good to be connected on here too.

❤️

Correct. Thank you.

When will Sars-Cov-2 be seasonal? It’s prevalence is high, all year round.

I despair.

Hi Gina! 🙋‍♀️

👩‍💻If anyone is interested in registering interest for the ERASE Trial here's the Google form 👇
forms.office.com/pages/respon...