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.

The Texas dairy worker infected by H5N1 "did not disclose the name of their workplace," frustrating investigators.

Since late March, at least 36 dairy cow herds have been infected with bird flu across nine different US states.

Dairy cattle infected by avian influenza in recent months have surprisingly large amounts of the virus in their milk but ...

Bird flu was probably circulating in dairy cows for at least four months before it was confirmed to be the highly pathogenic ...

Government officials say they are closely monitoring the bird flu virus in food, livestock and people but experts say more ...

B ird 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.

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 ...

The Texas dairy farm worker infected with H5N1 bird flu was not wearing respiratory or eye protection and had been exposed to cattle that appeared to have the same symptoms as those in a nearby farm ...

Officially, only one person has caught bird flu during the current outbreak among dairy cattle, but experts are hearing of others getting sick. The U.S. doesn't have an easy to way to detect cases.

For the first time, a case of avian flu is hitting dairy cattle in nine states. It could be even broader, said an Arizona scientist tracking the virus.

We’ve been hit with an early wave of the flu, infecting thousands of people from every age group well before the season of ...