Washington ranks “high,” while Oregon outpaces entire region and ranks among highest in nation in latest CDC update.

Respiratory illness activity is currently considered "high" in the United States, according to the CDC. In one state, it is at a "very high" level.

Newsweek has created a map showing states where respiratory syncytial virus (RSV) cases are surging.

The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

New data shows cases of norovirus are rising in the U.S. According to the CDC, state health departments reported 91 cases ...

Certain areas of the United States are seeing spikes in cases of norovirus, a highly contagious stomach bug, health experts said. The Centers for Disease Control and Prevention reported 91 outbreaks ...

Four weeks after a puzzling outbreak was reported in the Democratic Republic of Congo, the World Health Organization has ...