Norovirus conjures a nightmarish series of gastrointestinal symptoms, and the hated infection has been rampant this winter. The so-called stomach flu—although it’s unrelated to influenza ...

"It's drinking a lot of fluids to make up for the ones you're losing." To stop the spread of norovirus, skip the Purell and wash your hands. "It's about as low-tech a solution as there is ...