The New York State Department of Environmental Conservation (DEC) announced Thursday that it had five preliminary positive cases of highly pathogenic avian influenza, or bird flu, in Suffolk County.

A new nasal spray vaccine could stop bird flu at the door — blocking infection, reducing spread, and helping head off the next pandemic.

At the start of 2025, health officials in Louisiana reported the first U.S. bird flu death and experts questioned whether highly pathogenic avian influenza A (H5N1) could lead to the next pandemic. A ...

Researchers discovered why bird flu can survive temperatures that stop human flu in its tracks. A key gene, PB1, gives avian viruses the ability to replicate even at fever-level heat. Mice experiments ...

Health officials urged people to identify avian flu symptoms early and properly cook chicken and eggs to limit risk of infections.

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first recorded human case of an H5N5 avian influenza virus. What is this virus and ...

The wild Canada goose was found dead earlier in the week and tested for bird flu, per the zoo's standard protocol. After the positive test, the zoo closed its aviary "out of an abundance of caution," ...