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.

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

As the bird flu situation develops in the U.S., scientists told Newsweek the virus could become a pandemic--depending on what happens next. Right now, California is the epicenter of the outbreak ...

All year, I’ve been keeping tabs on the H5N1 avian flu outbreak in dairy cattle and birds in the United States. As a ...

but this child tested positive for a strain of bird flu, called H5N1, which infectious disease experts worry could fuel the next human pandemic. The virus first emerged on poultry farms in Hong ...

The virus has been found in raw milk, deepening concerns about bird flu's spread. Experts discuss the symptoms and how to ...

And if a bird flu pandemic was to break out, it would be "remarkably severe" in humans because we have no built-up immunity, she added. The US farm worker cases have been relatively mild so far.

Health experts have been sounding the alarm about the potential pandemic threat posed by bird flu, which has been showing signs of mutating as it spreads among cows and infects people in the ...