Vaccine experts said the memo was irresponsible and omits key details about how officials arrived at the conclusion.

Researchers found that Covid vaccines reduced the risk of emergency room and urgent care visits by 56% to 76%. Some federal ...

Myocarditis is a known — but small — side effect of the mRNA Covid vaccines from Pfizer and Moderna, information that federal ...

A source tells NBC News that FDA officials will present data they claim links 25 deaths of children to the Covid vaccine. Doctors say the Covid vaccine is safe and there’s no evidence it is causing ...

In an internal memo obtained by NBC News, a Food and Drug Administration official told agency staff they plan to overhaul vaccine rules, and claims an internal review found at least 10 children died ...

The former officials say the agency's plan to revamp how vaccines for flu, Covid and other respiratory viruses are handled ...

Across the country, confusion is growing over who is eligible for the Covid vaccine and how much it should cost. NBC News’ Steve Patterson spoke to a woman on Medicare who expected her Covid vaccine ...

A senior law enforcement official briefed on the investigation into the deadly shooting near CDC headquarters told NBC News the alleged gunman previously made suicidal statements and blamed recent ...

U.S. health officials continue to monitor for coronavirus cases in the United States. More than 90 million cases have been confirmed in the U.S., according to NBC News' count. New cases are declining, ...