Health secretary Robert F. Kennedy Jr. had previously said the U.S. would find the cause of autism by September.

Measles cases have reached 1,046 as the virus continues spreading across the United States, according to data updated Friday from the CDC.

And with Trump, men like Musk are guiding US domestic and foreign policies in eugenicist and longtermist ways, leaving millions in actual or potential peril. Perhaps the leading example of old-style ...

"We are seeing the proliferation of vaccine hesitancy, with a pronounced partisan split," a health expert told Newsweek.

Former President Joe Biden diagnosed with aggressive prostate cancer, focusing attention on racial disparities in prostate cancer outcomes.

The FDA will encourage new clinical trials on the widely used vaccines before approving them for children and healthy adults.

Florida passed legislation banning fluoride in public drinking water last week, making it the second to do so in the United ...

The variant, first detected in the U.S. in late March, has now been identified in arriving international travelers through ...

The vaccine is expected to remain available for anyone who is at least 65 or who has a medical condition, leaving many Americans ineligible. Here's what we know.

Twelve of 13 members of one family fell ill upon returning to the United States from a Costa Rica trip in late December. A ...

Whooping cough cases are on the rise in. Where have most cases been reported? What are the symptoms? How to protect yourself and others?

You're never too young to start eating for your heart. Science suggests these foods could help prevent clogged arteries. The ...