A recent study has provided the first side-by-side comparison of how three major COVID-19 vaccine types differ in triggering ...

On December 18, a San Diego emergency room nurse was given a shot of the COVID-19 vaccine. A week later, he tested positive for the virus, CNN affiliate KGTV reported. Stories like this will become ...

Some viruses mutate more rapidly than others. Learn more about why that is and what that means for your health.

CHICAGO, Dec 7 (Reuters) - A top U.S. scientist overseeing COVID-19 vaccine trials expects a large U.S. study to determine how effective AstraZeneca's experimental inoculation is, following perplexing ...

Ian Haydon helped test Moderna's coronavirus vaccine last year. Now, he's helping test the tweaked version of that vaccine designed to fight a new, more contagious variant. "A year ago I tried the ...

As respiratory virus season approaches, you may be wondering if you should get the new COVID-19 vaccine to protect yourself. However, it may be more difficult for some people to find the shot this ...

The FDA’s top vaccine regulator asserted in a staff email that the Covid vaccine caused at least 10 kids' deaths, but experts ...

Getting an updated coronavirus vaccine can be particularly challenging this year. The Food and Drug Administration approved those shots for people who are 65 and older or have underlying conditions ...

A senior Food and Drug Administration official on Friday said the agency will change its vaccine approval process, alleging ...