Will Stone

TikTok has become the go-to source on ADHD for teens and young adults. But a new study finds that a lot of the information is misleading and can make people's symptoms worse.

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems might be primed to fend off a worse case, research finds.

The National Institutes of Health is terminating dozens of studies examining why people are hesitant about vaccines and how to increase uptake. mRNA vaccine research may be on the chopping block, too.

They're pushing for more funding to find effective treatments. Researchers are finally starting to make headway but have a way to go.

Some employees who were previously fired received emails saying they're "cleared to return to work."

Staff and observers worry that the agency may not be prepared for emerging threats including bird flu and insect-borne diseases.

The panel of vaccine experts were supposed to hold their first meeting under the Trump administration in late February. It's not clear when that meeting will now take place.

As flu rages, the Trump administration has pulled the plug on a Centers for Disease Control and Prevention flu immunization campaign that targeted high-risk groups, including pregnant women.

The fired staffers were tasked with making sure medications given to animals work well and are safe.

As the dust settles from the first wave of firings at health agencies, here's how many people got cut and the impact of the roles that were lost.