A recent bird flu death has sparked fears that a "brand-new virus" could potentially mutate under the right conditions and ...

Researchers have identified nine mutations in a bird flu strain from a person in Texas. Bad news: this strain is more capable of causing disease and replicates better in the brain. Good news: approved ...

Over the past several months, bird-flu numbers have been steadily ticking up, especially among farmworkers who interact ...

Current strains of bird flu are “poorly suited for pandemic potential,” said Dr. Shira Doron, a Tufts Medicine infectious ...

America should have more aggressively intervened almost a year ago.

A person in Louisiana who was hospitalized with a severe case of bird flu has died.

Dozens of cats across the U.S. have tested positive for avian flu, federal officials say. The west coast has been hit especially hard.

Public health officials have warned that new mutations of bird flu with human flu could have dangerous consequences.

The administration is committing an additional $306 million toward battling the virus, and will distribute the money before ...

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

Just a few mutations could allow the bird flu to spread between people ... “I hear over and over from workers, ‘The cows are more valuable than us.’” The USDA has so far put more ...