Pfizer's and Moderna's formulas have been the go-to on pharmacy shelves, but Novavax remains an important option.
Catching the virus that causes COVID-19 or getting a COVID-19 vaccination gives you protection, also called immunity, from the virus. But over time, that protection seems to ...
At least 12 states in the U.S have reported a case of COVID with a new variant called XEC, which is on the rise in some ...