President Trump announced he's pulling the U.S. from the WHO. Now researchers are scrambling to understand what that means for the H5N1 bird flu pandemic.

A number of bird flu cases have been reported in the Chicago area in recent weeks, leading to many questions about how quickly the virus is spreading and how worried residents should be.

H5N1 bird flu has been found to infect mammals more extensively. Although there has yet to be evidence of human-to-human ...

Philadelphia health officials say a goose found next to Carroll Park in West Philadelphia had highly infectious bird flu.

"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

A wild goose found at Green Chimneys in Putnam County has tested positive for H5N1. What to know about bird flu.

When a pathogen — any organism that causes a disease — jumps species, scientists get nervous because its genetic makeup can ...

Researchers at Texas Biomed have identified nine mutations in a strain of bird flu found in a person in Texas. Bad news: This ...

The H5N1 virus has mutated meaning it has begun to adapt to infect humans better raising new questions about H5N1's pandemic ...

In a press release issued on Jan 15., the San Antonio-based research team said mutation was more possible in humans.

The deaths prompted policy changes announced Friday by the USDA and the Food and Drug Administration, which focus on ...

A recent outbreak of bird flu has revealed a strain in a Texas patient with nine mutations, making it more efficient and ...