The tap water, the food preparation staff and the food itself are being assessed to trace the route of transmission, according to a statement from the Pyeongchang Organizing Committee. Newsletter Sign Up Continue reading the main story Please verify you're not a robot by clicking the box. Sign Up You agree to receive occasional updates and special offers for The New York Times's products and services. It is spread by touching contaminated surfaces, caring for sick people or eating uncooked food that people with the illness have touched. There are many strains of norovirus, so people can catch it more than once in their lives.
