masks

Small study, but I thought it was interesting how well N95 respirators worked without any fit testing. I remember at the beginning of the pandemic there was a lot of concern about how well these type of masks would work for the average person without any fit testing. Measuring the fitted...

Masks return to some parts of UK amid surge in Covid cases (msn.com)

Masks and respirators for prevention of respiratory infections: a state of the science review Authors: Trisha Greenhalgh, C. Raina MacIntyre, Michael G. Baker, Shovon Bhattacharjee, Abrar A. Chughtai, David Fisman, Mohana Kunasekaran, Joe Vipond et al...

Rampant COVID Poses New Challenges in the Fifth Year of the Pandemic “We’re still in a pandemic,” says a lead COVID official with the World Health Organization https://www.scientificamerican.com/article/rampant-covid-poses-new-challenges-in-the-fifth-year-of-the-pandemic/ (some extra line...

Indoor air systems crucial to curbing spread of viruses, aerosol researchers say Video from the 60 Minutes TV show, about 13 minutes long. Transcript here: https://www.cbsnews.com/news/indoor-air-quality-healthy-buildings-60-minutes-transcript/

Public urged to wear face masks again as new Covid sub-variant sweeps Britain (msn.com)

Physical interventions to interrupt or reduce the spread of respiratory viruses Background Viral epidemics or pandemics of acute respiratory infections (ARIs) pose a global threat. Examples are influenza (H1N1) caused by the H1N1pdm09 virus in 2009, severe acute respiratory syndrome (SARS) in...

People who haven't had COVID will likely catch XBB.1.5 – and many will get reinfected, experts say Variant XBB.1.5 is very contagious, meaning everyone is at risk even if you've already been infected. As the U.S. enters year 3 of the pandemic, here's an update on the state of COVID. KAREN...

CDC Maps: From Red to Green Comparison of two of the CDC maps (community transmission vs community levels) that are available on the CDC website and displayed on their social media. FYI, this video is new, and the discussion is timely, even though the CDC made these map changes to show new...

Western medical authorities and the WHO have repeatedly stated that the populace do not need to wear masks or respirators, and that for the general public these offer no protection from coronavirus. The WHO say: Source: here It's rather annoying when scientists hide behind deceptive...

I rarely go out and seem to have ended up with a bunch of useless masks. I'd like better ones. I gather that cotton ones, even with a tissue layer, aren't much good; I've bought some that are supposed to be better, but they don't fit, so presumably are 100% useless for self-protection. What are...

How much use, in preventing viral particles being inhaled, would simple masks, sewn up at home, be? I’m thinking an inner sewn from an old towel (more absorbent than a new one) with a cotton outer (would be finer gauge than the towel) and tapes to secure it? (Perhaps a paper clip sewn carefully...