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 ...

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

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

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 ...

Why does South Korea have a bell curve while the US has a steep slope? Let's zoom in, starting with China, the first country to be hit by the virus ... and states like California and New York ...

Cases of a wretched stomach bug are surging in parts of the United States this winter ... when people who are already infected spread the virus to others by direct means, such as through ...

However, the discovery of this strain raises concern about the H5N1 strains of bird flu currently circulating in the United States: the virus’s rapid mutation when it infects a new host species.

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 ...