Cases of the H5N1 strain of bird flu are on the rise in humans in the US, with the first severe case reported.

Newsweek has created a map showing which states have recorded the most human bird flu cases, after the first human case of ...

The CDC believes that the patient, who is in critical condition, may have caught it from a backyard flock. The patient is over 65 and has underlying medical conditions. Plus: California declares a ...

While there have been no known cases of human-to-human transmission so far, Gov. Gavin Newsom on Wednesday issued an emergency proclamation to combat the spread of the virus and provide state and ...