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 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 ...

But Khan said every new infection increases the odds that bird flu could mutate and lead to more severe disease. In North America, six people have ended up in hospital with bird flu since March 2024.

A recent study has revealed that a single genetic change in a strain of the highly pathogenic H5 influenza virus could ...

Just as swine flu strains tend to infect pigs ... to sick birds or other sources of infection. Influenza viruses mutate in a special way called reassortment, which occurs when multiple strains ...