The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

With a halt on scientific data being shared publicly, the CDC is getting crafty to warn of increasing flu hospitalizations.

As cases of H5N1, also known as avian flu or bird flu, continue to surface across the U.S., safety precautions are ramping up ...

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

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 ...

“What we need is to shift to a system that tells us what’s happening in the moment,” Nirav Shah, principal deputy director at CDC, told reporters Thursday morning. Both bird flu and most ...