MedPage Today on MSN

CDC Studies Suggest Slumping Flu Shot Protection

Viral mismatch between circulating strains and vaccine may have weighed down effectiveness ...

Flu vaccines didn’t work that well in the US, officials find

As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well. It had one of its worst effectiveness rates in more than a decade.
Mayo Clinic on MSN

How well do face masks protect against COVID-19?

Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and ...
CBS News

Sara Cook

CDC updates guidance on best masks to protect against COVID-19 The CDC updated its website to say N95 and KN95 masks offer higher levels of protection than cloth masks, although it stopped short of ...