Bird flu, or avian influenza, can be deadly in birds but normally doesn’t infect people. While some strains have caused serious disease and even death in humans, most cause relatively mild symptoms. In the U.

A US farmworker who caught bird flu after working with dairy cattle in Texas appears to be the first known case of mammal-to-human transmission of the virus, a new study shows.

Officially, only one person has caught the illness during the current outbreak. But with limited testing, cases could be flying under the radar.

Cattle prices have tumbled as the US government steps up measures to contain the spread of a bird flu outbreak among the country’s cow herd. The US Department of Agriculture at the start of this week banned infected cattle from crossing state borders and said it would test ground beef for bird flu particles,

Bird flu is an infectious viral illness that can spread among birds, and in rare cases, it can spread to humans. Here's what you need to know about how bird flu spreads and the preventative measures you can take,

Health authorities have called for increased monitoring of US farm workers at risk of catching H5N1, after genetic data confirmed the first instance of the virus jumping from mammals to humans.