Washington state health officials are investigating after four agricultural workers tested presumptively positive for bird ...

All of the state's cases have been linked to contact with infected dairy cows, officials said. No human-to-human transmission has been documented.

Cows in California are dying at much higher rates from bird flu than in other affected states, industry and veterinary ...

Bird flu is presumed to have infected four poultry workers in Washington state, making it the sixth U.S. state to identify ...

Bird flu is presumed to have infected four poultry workers in Washington state, making it the sixth U.S. state to identify ...

To date, a subtype of highly pathogenic avian influenza—known as H5N1—has been detected in over 9,000 wild birds and has affected greater than 90 million poultry in the United States.

Health officials are sounding the alarm as new cases of bird flu are now popping up in humans and commercial dairy farms.

But for gulls — sometimes erroneously called “seagulls,” though they are not exclusive to the ocean — they are described as ...

Helen Branswell, STAT’s infectious disease reporter, has been writing about H5N1 bird flu for 20 years ... is genetically suited to infecting wild birds is being given the opportunity to ...

France has raised its risk level of bird flu to 'moderate' from 'negligible', it said in a decree published in the official ...

Avian influenza may be jumping to people directly from migratory birds as they travel thousands of miles across the globe’s flyways, scientists have warned. It has long been known that these ...

Washington state health officials are investigating after four agricultural workers tested presumptively positive for bird ...