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 ...

CDC testing data for the same period reveals that 6.6 percent of COVID-19 tests came back positive, with Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin seeing the highest test positivity ...

COVID-19 tests across the country came back positive, but Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin had an 8 ...

Respiratory viruses are continuing to spread across the United States and such activity "is expected to continue for several ...

Data from the Centers for Disease Control and Prevention show cases of norovirus, the highly contagious stomach bug, are ...

Avian flu is rampant in poultry farms and in wild birds in the U.S. Every mutation brings the virus one step closer to the ...

Virus levels in wastewater are higher than they were a year ago, but experts caution against comparisons and note hospitalizations are lower than last winter.

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

We produced epidemiologic curves of human cases according ... of highly pathogenic avian influenza A(H5N1) virus infection in the United States according to date of illness onset and exposure ...

Staying one step ahead of the virus — with surveillance, testing and research — could mean the difference between a close ...