New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

New research uses bird droppings to track avian flu in remote regions, revealing hidden hotspots and potential for early outbreak detection.

Latest data shows which counties have been hardest hit by bird flu outbreaks among poultry flocks as the human case count climbs.

The CDC is tracking flu cases, with the latest map ending on November 23. It shows an increase from the eastern to western U.S. in several states. Nicole Baker discusses with Dr. Jennifer Moreira ...

CDC flu tracker map 2022: Huge swaths of red and purple.

The number of flu-related hospital admissions “almost doubled” compared to the week before, the CDC said. The number of hospitalizations we’ve seen so far this year is already higher than ...

The CDC map isn’t based on confirmed influenza lab tests but rather tracks where people are going to the doctor with flu-like symptoms (respiratory illness and fever, plus a cough or sore throat).

See the full interactive map here This year's uptick in flu cases is happening when children’s hospitals already are dealing with a surge of illnesses from RSV, or respiratory syncytial virus, a ...

So far this season, there have been an estimated 1.6 million flu illnesses and 13,000 hospitalizations. Flu activity is most intense in some areas where RSV is fading, including the Southeast ...

Flu activity is most intense in some areas where RSV is fading, including the Southeast, according to CDC data. This story was reported from Los Angeles. The Associated Press contributed.