Another COVID vaccine booster?
The FDA has approved another COVID-19 vaccine booster from either Pfizer-BioNTech or Moderna for people 50 and older. But some health experts say it isn't clear if Americans who are healthy need another shot.
The FDA has approved another COVID-19 vaccine booster from either Pfizer-BioNTech or Moderna for people 50 and older. But some health experts say it isn't clear if Americans who are healthy need another shot.