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

Easy replication in cattle mammary glands means H5N1 bird flu is under no evolutionary pressure to adapt to spread easily in humans.

Bird flu infections have been rare among people, but the pathogen is evolving, which has scientists worried about a possible ...

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

Apr. 17, 2025 — 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 ...