CDC says masks must fit tightly – and two are better than one

How well your mask works depends on how well it fits. Wearing two snug masks made of different materials offers 95% protection from exposure to aerosols that could contain the coronavirus.

Scott N. Schiffres, Assistant Professor of Mechanical Engineering, Binghamton University, State University of New York • conversation
Feb. 11, 2021 ~9 min

Would you eat indoors at a restaurant? We asked five health experts

Experts weigh in on whether they will sit and eat at a restaurant.

Thomas A. Russo, Professor and Chief, Infectious Disease, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo • conversation
Dec. 23, 2020 ~9 min

Aerosols are a bigger coronavirus threat than WHO guidelines suggest – here's what you need to know

More than 200 scientists wrote to the WHO, warning about aerosol transmission of the coronavirus. The WHO has since acknowledged the evidence but hasn't change its advice yet.

Goodarz Ahmadi, Professor of mechanical engineering, Clarkson University • conversation
July 9, 2020 ~9 min

People are getting sick from coronavirus spreading through the air – and that's a big challenge for reopening

SARS-CoV-2 can be spread through the air. But just how much of a factor that is has been hard to determine. Recent evidence suggests it is common, posing problems as public places begin to reopen.

Douglas Reed, Associate Professor of Immunology, University of Pittsburgh • conversation
June 16, 2020 ~9 min

Masks help stop the spread of coronavirus – the science is simple and I'm one of 100 experts urging governors to require public mask-wearing

Recommendations around mask usage are confusing. The science isn't. Evidence shows that masks are extremely effective to slow the coronavirus and may be the best tool available right now to fight it.

Jeremy Howard, Distinguished Research Scientist, University of San Francisco • conversation
May 14, 2020 ~10 min

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