The Food and Drug Administration says it has decided to continue approving COVID-19 vaccine updates for seniors and others at higher risk of severe disease, but will require vaccine makers to conduct major new clinical trials before approving them for wider use.

Federal health agencies were alerted in February 2021 to “large reports of myocarditis” in young people who received the Pfizer vaccine, but waited until late June to adjust the

The most commonly reported adverse events with the AZD1222 COVID-19 vaccine are headache and fatigue, a large-scale active surveillance study from the United Kingdom shows.

No, this is not true. Vaccines undergo rigorous safety testing and are continuously monitored for adverse events.

Under a new policy announced Tuesday by the Trump administration, only people age 65 and older and children or young adults with certain health conditions that puts them at risk will be approved for the shot.

Late-stage trial data suggest that a new COVID-flu vaccine offers good protection against both infections, but experts expect the shot's approval may be delayed.

Since the COVID-19 pandemic, there has been a decline in U.S. vaccine uptake, while widespread misinformation and distrust make it challenging to craft effective public health responses.