A rapid, two-step immune reaction may underlie rare cases of heart inflammation seen after Covid mRNA vaccination, Stanford ...

A new study identifies a mechanism for how COVID vaccines may, in infrequent cases, drive heart inflammation, a condition ...

Researchers identified two immune signals that may help explain why a small percentage of young males develop chest pain or ...

The US Food and Drug Administration intends to put a “black box” warning on Covid-19 vaccines, according to two people familiar with the agency’s plans.

Federal officials in the US say that Covid-19 vaccines remain available to everyone, despite new restrictions on the groups that they’re approved for. But experts suggest that claim is misleading, as ...

The Food and Drug Administration is planning to impose strict new vaccine regimens, Covid-19 shots contributed to the deaths ...

Physician and science communicator Kristen Panthagani talks about why public trust in vaccines has fallen since the COVID-19 ...

Two large studies have put a spotlight on potential health risks of the COVID vaccine — but some experts urge caution when interpreting the findings. Recent research has linked the vaccine to a higher ...

The flu season has started early this year, and we are prepared for it to be a bad one. Whether you have already had a ...

Federal officials say the U.S. Food and Drug Administration (FDA) is reviewing reports of possible deaths in adults and ...

The agency claimed that 10 children’s deaths were linked to the shots, although it did not release evidence to support the ...

Food and Drug Administration officials say they will ratchet up requirements for vaccine studies, citing concerns about COVID ...