California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in ...

The Centers for Disease Control and Prevention called it the first severe case in the U.S., though the risk to most of the public is still low.

A global outbreak of avian flu has reached Arizona, affecting animals and humans. Officials say the public health risk ...

The bird flu outbreak has spread to all 50 states, infecting dairy cattle, poultry farms and 61 humans across the country.

At least 61 people in the US have contracted bird flu amid outbreaks in poultry and dairy cows. What are the symptoms? What ...

Some 43% of the laying hens culled in response to bird flu in the past 30 days have been in Iowa, sending wholesale prices to ...

Bird flu has spread so widely that it was always going to make someone seriously sick.

The H5N1 strains are becoming more concerning as the first severe U.S. case has been detected and California declared a state ...

Exclusive reporting reveals how the United States lost track of a virus that could cause the next pandemic. Problems like the ...

U.S. wholesale egg prices are shattering records as an accelerating outbreak of bird flu in laying hens slashes supplies ...