CDC study on the use of personal protective face masks against viral influenza transmission found no significant protection against or reduction of viral transmission of influenza among infected and uninfected individuals.
We did not find evidence that surgical-type face masks are effective in reducing laboratory-confirmed influenza transmission, either when worn by infected persons (source control) or by persons in the general community to reduce their susceptibility
CDC along with Fauci and numerous other “experts” told us not to wear facemasks.
Now they tell us to wear facemasks.
Funny how it switches like that.