With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

Is the COVID-19 vaccine safe and effective for infants and young children, and what side effects might kids experience? Here's why it's so important for children to get the COVID-19 vaccine.

The flu is such a seasonal misery that you might be tempted to take it for granted — local officials hope you won't.

The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the ...

The U.S. influenza rate is at or near its highest level in at least 15 years and is still on the rise, the U.S. Centers for ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

Flu activity is at its highest level since 2009, forcing school closures and overwhelming hospitals across the U.S.

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years. One indicator of flu activity is the percentage of doctor’s office visits driven by flu-like symptoms ...

Flu has surged to high levels across the US, straining hospitals. Experts discuss 2024-25 flu season trends, symptoms to ...

Despite the severity of this flu season, vaccination rates have remained consistent with previous years, according to the CDC ...