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

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

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

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

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

The first severe case of H5N1 bird flu was confirmed in Louisiana. Here is a map of other states that have been affected.

California Gov. Gavin Newsom declared a public health emergency on Wednesday as bird flu continues to spread among the ...

Medscape Medical News spoke with the CDC expert on the current H5N1 situation in the United States and ongoing surveillance ...

California has borne the brunt of the outbreak in cattle. The first herds in the nation infected with the bird flu virus, H5N1, were identified in March. California identified its first infected ...

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 ...