On November 13, Spain's Ministry of Agriculture, Fisheries and Food imposed the confinement of all free-range poultry farms to curb the spread of avian influenza—more commonly known as "bird ...

In a review article published in the journal Nature, the authors describe molecular and ecological factors associated with the sudden expansion of H5N1 high-pathogenicity avian influenza (HPAI) ...

Health experts warn of another potential pandemic due to the H5N1 avian flu. The virus, impacting birds and mammals, has spread across the U.S. and resulted in significant poultry losses. The avian ...

A teenager in British Columbia is in critical condition after being exposed to H5N1 bird flu. The source of the virus has not been determined. The teen is the first presumptive case of H5N1 bird flu ...

News that H5N1 avian influenza has breached another mammalian species — this time dairy cows — has taken the flu science community aback. Though cows previously had been seen to be susceptible to ...

The unsettling reality of H5N1 bird flu circulating in dairy cow herds in multiple parts of the United States is raising anxiety levels about whether this dangerous virus, which has haunted the sleep ...

A California duck farm made headlines this week after the World Organization of Animal Health published a report by U.S. authorities that a strain of bird flu that scientists call H5N9 had been found ...

H5N1 caught scientists by surprise when an outbreak in US dairy cattle emerged in March. New cases slowed in the summer, when dairy cows move around less, partly due to heat and partly because demand ...

Since late 2021, a panzootic, or "a pandemic in animals," of highly pathogenic bird flu variant H5N1 has devastated wild birds, agriculture, and mammals. Unlike previous outbreaks, aggressive culling ...