Tweet from EricTopol at August 15, 2022 at 08:21AM
The use of high-quality masks (like N95/KN95 respirators) by patients, compared with surgical masks, substantially reduced Covid infections among nearly 4,000 health care workers
https://t.co/Ta5sfucD4V @JAMANetworkOpen https://t.co/kPgYPEjAK3— Eric Topol (@EricTopol)
Aug 15, 2022
from http://twitter.com/EricTopol