Avian influenza, commonly known as bird flu, is a viral infection that spreads in birds. There are many subtypes of avian flu ...

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human ...

Commercial duck flock in California has tested positive for two strains of avian influenza. On November 23, 2024, two HPAI viruses were identified in samples from a farm rearing meat ducks in Merced ...

The United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World ...

H5N9 is a strain of the H5N1, H7N9, and H9N2 bird flu virus subtypes, according to the National Institute of Health, but far less common. The USDA Animal and Plant Health Inspection Service ...

H5N9 is “not commonly seen in poultry in general,” says Eman Anis, assistant professor at the University of Pennsylvania ...

FILE - Hundreds of ducks on a farm in 2017. (Photo by DON EMMERT/AFP via Getty Images) H5N9 is a strain of the H5N1, H7N9, and H9N2 bird flu virus subtypes, according to the National Institute of ...

The finding at a California duck farm is raising alarms among public health experts that bird flu could further mutate into ...

There are many variations of bird flu, also known as avian flu and although humans can be affected by it, it depends on the ...

Several of Japan’s recent outbreaks of highly pathogenic avian influenza have hit commercial layer flocks, resulting in a sudden jump in market prices.