A devastating wave of respiratory illnesses is sweeping across 40 US states, with millions already affected.

Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick with coughs, soreness, fevers, vomiting, and other flu-like symptoms.

Delays in CDC analyses of infectious disease threats and agency silence will harm Americans, doctors and ...

Flu season is in full force in the United States. At least 310,000 flu-related hospitalizations and 13,000 deaths have been ...

Nearly half of an elite US epidemiology program known as the "disease detectives" were dismissed by the Trump administration ...

The new study is more evidence that the official U.S. tally of confirmed human bird flu infections — 68 in the last year — is ...