The CDC determined the person was likely exposed to H5N1 from sick or dead birds in a backyard flock ... The CDC has not yet ...

Federal authorities say it is likely being carried from farm to farm on objects like farm equipment or clothing that has ...

Reports that cows have been infected despite farmers' preventive measures indicate there are multiple routes of transmission ...

Northwest Naturals is recalling a line of its pet food after authorities Oregon linked the death of a cat to a batch ...

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

The U.S. Centers for Disease Control and Prevention says a patient has been hospitalized with a severe case of H5N1 infection ...

Nearly all of California’s cases of bird flu in people were due to ... the first instance of severe illness linked to the virus in the U.S. The H5N1 bird flu virus “has previously been associated with ...

California has declared a state of emergency for H5N1 bird flu amid fears that the virus could jump to people and start to spread. The move comes in response to a major outbreak of the virus ...

A Louisiana patient is critically ill with severe respiratory symptoms from H5N1 bird flu, marking the 61st U.S. human case ...

Los Angeles County health officials have identified three more cats with presumptive H5N1; the source of the virus has not ...

The H5N1 bird-flu virus has been found in new dairy-cattle herds in Southern California. No human-to-human spread has been ...

Gov. Gavin Newsom has declared a state of emergency in response to the H5N1 avian flu outbreak in California. Here's what you need to know.