Virus

The vast majority of human cases of H5N1 bird flu in the U.S. have resulted from direct contact with animals, so a few simple precautions can keep most people's risk very low.

A child in California caught bird flu amid a recall of raw milk in the state, but investigations have found no evidence that the case was caused by raw milk.

Researchers have made great strides to prevent deaths from fatal diseases, but the cures for some of them still elude us.

At least 15 people have fallen sick as a result of eating contaminated ground beef, and health officials warn that the products may still be lurking in restaurant refrigerators.

Epidermolysis bullosa is a potentially fatal, inherited disorder that causes patients to blister very easily.

U.S. health officials are investigating an outbreak of E. coli tied to now-recalled organic whole bagged carrots and baby carrots from Grimmway Farms.

New research suggests that climate change is currently driving a surge in global dengue infections and that case rates could increase by 60% by 2050.

Immune cells produced during severe COVID-19 infection may shrink tumors. The unexpected mechanism offers a new therapeutic possibility for advanced and treatment-resistant cancers.

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how the youth was exposed.