Moderna Inc.’s shares fell after US regulators refused to review its novel mRNA flu vaccine, creating regulatory chaos for ...

The Food and Drug Administration rejected Moderna’s application for its mRNA-based flu vaccine, the drugmaker said Tuesday ...

For decades, hospitals have given babies a vitamin K injection to protect against bleeding. Now, the shot appears to be ...

Can the flu shot cause the flu? You may be tempted to skip your flu shot this season because of scheduling issues, a fear of needles or another reason. But misconceptions and misinformation — ...

The Minneapolis man shot and killed by a Border Patrol agent today has been identified as Alex Pretti. Trump administration and Minnesota officials offer starkly different accounts of the shooting.

Influenza A H3N2 subclade K has driven flu cases across the country, with 52 counties in Florida seeing increases over the past week. While the current flu vaccine might be a "mismatch," it still ...