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

The H5N1 virus, initially restricted to Eurasia and Africa, has since spread to North and South America and even reached ...

If seabirds can catch avian flu by stealing food from infectious birds, it gives scientists a clue where to monitor for outbreaks among these vulnerable birds.

On Monday state officials announced they had completed testing on all 95 licensed farms in Massachusetts that have dairy ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

A close contact of someone with bird flu became ill on the same day, the C.D.C. reported. But the second person was not ...

Previous human infections occurred in workers on farms. But community transmission of the virus remains unlikely for now, ...

While authorities are downplaying the dangers of the H5N1 virus, it can evolve very rapidly and every spillover event into ...

Several labs will work with federal health authorities to develop a test for avian influenza, as the number of human cases rise across the country. The Utah-based ARUP Laboratories said Friday ...

Japan has detected its first outbreak of bird flu for the 2021 winter season, with confirmation of a case of “highly pathogenic avian influenza” at a poultry farm in the northeast of the ...

More than seven million captive birds have been killed since the nation's worst-ever avian flu outbreak began in October 2021, according to government figures. Defra says there have been 279 ...

Populations of gannets and roseate terns were also seriously reduced after avian flu killed thousands of wild birds in 2021-22. The numbers of the three species had been rising before the outbreak.