The H5N1 avian influenza virus—commonly known as bird flu—has been causing outbreaks in dairy cows in the United States since ...

A new international study has found that the H5N1 avian flu virus is gradually becoming better adapted to infect cattle. This ...

Finding that vampire bats along Peru’s coast carried H5N1 antibodies raises concerns that multiple bat species could become ...

Officials have detected highly pathogenic avian influenza (HPAI) H5N1 in a dairy cattle herd in Wisconsin, according to the ...

The H5N1 avian influenza virus – commonly known as bird flu – has been causing outbreaks in dairy cows in the United States ...

Three state agencies remain on alert after a third presumptive case of avian influenza — or bird flu — was found in a wild ...

Scientists have detected H5N1 bird flu exposure in vampire bats, revealing a previously hidden wildlife pathway that could ...

When bird flu spilled over into dairy cattle last year, researchers discovered high concentrations of the H5N1 virus in the ...

To date, human infections have been rare and are typically linked to direct contact with animals. Sustained human-to-human transmission has not occurred, and health officials say the overall pandemic ...

Bird flu, or H5N1, has touched most of the globe, but there is one spot it hasn't reached. Researchers down under are preparing for it, but gaps in bird flu surveillance elsewhere makes it difficult.

New research reveals why bird flu poses such an unusual danger to humans: it can keep multiplying even at temperatures that normally shut viruses down.

A wild endangered Hawaiian duck died from a presumptive case of avian influenza, the Hawaiʻi Department of Land and Natural ...