The U.S. approved a new COVID-19 vaccine made by Moderna late Friday but with limits on who can use it — not a replacement for the company's existing shot, but a second option. The new vaccine, ...

The Food and Drug Administration has narrowed approval of coronavirus vaccines, allowing the shots for higher-risk Americans, including people susceptible to severe illness and those 65 and older. But ...

The Centers for Disease Control and Prevention on Monday said it had officially recommended updated coronavirus vaccines, creating a new system to get a shot that’s slightly more complicated than in ...

Amid the uncertainty surrounding eligibility for and access to the latest Covid-19 vaccine, a new study has found that a common nasal spray could help prevent infection. This randomized ...