Most people infected with West Nile virus do not develop symptoms. But about 1 in 5 people who get infected develop a fever and other symptoms such as headache, body aches, joint

Though it is commonly called the "winter vomiting disease," norovirus outbreaks are still cropping up around the country in late May.

A rare but dangerous tick-borne virus is on the rise across the U.S. The Powassan virus is spread mainly by the deer tick, the same one that carries Lyme disease. However, unlike with Lyme disease in