New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Cambodia's health ministry today announced another human H5N1 avian flu case of the year, involving a 5-year-old boy from ...

The Louisiana patient was hospitalized with a severe case of bird flu in the first death in the U.S. caused by the H5N1 virus.

A Michigan animal sanctuary owner alleged state authorities were inhumane when they culled her birds. She changed the state's H5N1 depopulation code.

One of the ways the CDC has stepped up its surveillance of H5N1 infections in people is by asking state public health laboratories to perform additional testing on all patient samples that test ...

The first human death from bird flu has been recorded in the US, amid concerns that the virus could become more transmissible among people. The patient, who was over 65 and had underlying health ...

The H5N1 virus is the major strain circulating among wild birds worldwide, and emerged in China in the late 1990s. Although infection of humans is very rare, it occurs via transmission from birds.

How deadly is the bird flu? The US has reported its first death from avian influenza, H5N1. Here's what to know about bird flu mortality rate and who is at risk.

The Louisiana Department of Health said on Monday that a U.S. patient hospitalized with H5N1 bird flu has died.

It’s the first human death from H5N1 in the country since concern over the current outbreak started in early 2024 when it became clear the virus was being transmitted in the U.S. between cattle.