The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

A person in Louisiana contracted the nation's first serious human case of avian influenza, or bird flu, and was admitted to ...

Newsweek has created a map showing states where respiratory syncytial virus (RSV) cases are surging.

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

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

Public health officials have just reported the first known “severe” case of bird flu in the United States. There are now 61 ...

The bird flu outbreak has spread to all 50 states, these maps show. Here are the symptoms and what to do if you think you ...

The Centers for Disease Control and Prevention (CDC) has identified mutations in a strain of the avian influenza virus H5N1, ...

There have already been at least 1.9 million illnesses, 23,000 hospitalizations and just under a thousand deaths from the flu ...

Outbreaks of the stomach flu are spreading across the U.S and are far higher than average for December over the past 12 years ...

It can spread to other animals and to humans. The H5N1 bird flu isn’t new. The CDC says the virus was first identified in Southern China in domestic waterfowl in 1996. In 1997, it spread to 18 ...