The number of California dairy herds reported to have outbreaks of H5N1 bird flu has grown to eight.

The Centers for Disease Control and Prevention said Thursday it has yet to identify “a clear source” of infection in a ...

A patient in Missouri was hospitalized with bird flu despite having no reported contact with animals, according to the CDC.

A person sickened by bird flu in Missouri was probably an isolated case, federal health officials said Thursday, though they ...

The convergence of multiple flu strains in one animal can allow new virus strains to form—just as they did in past pandemics.

and isn’t able to differentiate between influenza A subtypes, meaning the H5N1 virus or other subtypes may have been detected. May 9Some 70 people in Colorado are being monitored for bird flu ...

The case is concerning because it's the first human case this year not tied to a known exposure to animals. Before now, all ...

The human cases of the virus, also known as bird flu, have all been livestock workers who interact directly with cattle and ...

Unprecedented levels of the bird flu virus have been detected in wastewater samples from across Texas, raising alarms that the disease is adapting to infect a new host.

Missouri reported its first human case of the current U.S. outbreak. All other 14 cases nationwide have been livestock ...