At least 15 states have very high levels of influenza, according to the Centers for Disease Control and Prevention.

Flu activity has surged to high levels in many states, overwhelming some hospitals. Experts discuss what to expect for the ...

Here’s what to know about the diseases currently spreading in the U.S. — and what you can do to keep yourself and your family ...

Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin had the highest rates, with 9.2 percent of tests coming back positive.

Twenty states (plus D.C.) had "very high" levels of the virus present in wastewater, an increase from 16 states the week before.

Respiratory illnesses, including COVID-19, influenza, and RSV, are surging across the United States, with healthcare systems ...