Over 160,000 people this season have landed in the hospital from flu complications, CDC estimates. More than 6,600 have died.

Viral sicknesses have risen in early 2025 amid the ongoing “quad-demic” in the U.S., referring to three respiratory viruses and one gastrointestinal disease, according to the Centers for Disease ...

A California child was recently confirmed as the third human case of bird flu with a known source of infection. What could ...

The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...