Norovirus, aka the ‘stomach flu,’ is on the rise – an infectious disease expert explains the best ways to stay safe

Norovirus, a highly contagious illness also known as the 'stomach flu' is surging through the U.S. The best ways to prevent the illness, which causes vomiting and diarrhea, is to practice good hand hygiene. Washing with soap and water works the best. Hand sanitizers aren't as effective against norovirus.