H5N1 bird flu has now crossed into U.S. dairy cattle for the first time, and alarmingly, it did so through just one spillover ...

Fears the world is heading towards another pandemic are growing, as new data shows the spread of the deadly bird flu virus ...

A vaccine under development has demonstrated complete protection in mice against a deadly variant of the virus that causes bird flu. The work focuses on the H5N1 variant known as 2.3.4.4b, which has ...

A variant of the bird flu virus, collected in 2016 and no longer in circulation, was just one mutation away from being able ...

Avian flu strains tend to only affect birds, but the current outbreak has spread to cattle and – in rare cases – people. The ...