A new national wastewater map is offering a window into the spread of the highly contagious norovirus across the United States.

The CDC estimates at least 11 million illnesses from the flu so far this year, with 120,000 hospitalizations and 5,000 deaths. The dominant flu strain this year is A H3N2, which causes the most ...

(NEXSTAR) – Cases of the flu continue to mount, with health officials recently recording the first pediatric flu-related deaths of the season, but some states are seeing much higher activity than ...

Tick-borne encephalitis virus, known as TBEV, hijacks the internal membrane machinery of host cells to build hidden factories for its own replication, and a growing body of three-dimensional ...

This is the weekly Outpatient Respiratory Illness Activity map from the CDC, for the week ending Jan 31, 2026. This is the weekly Outpatient Respiratory Illness Activity map from the CDC, for the week ...