At a speech in Lancaster County, Robert F. Kennedy mocked the threat of measles. Now local officials are racing to...

New technology may make it easier for men with extremely low sperm counts to have biological children.

It is not clear whether the order, the president’s third to address the topic in less than a year, has...

The company said it was unaware of any reported illnesses linked to its products containing jalapeños, which were distributed to...

She challenged the conventional view that most head and neck cancers resulted from cigarette smoking and excessive alcohol consumption.

The agency had initially refused to even review the application but reversed course after a public outcry.

The drug targeted inflammation, and its shocking failure has experts questioning whether inflammation really does cause heart disease.