Virus Alert: 200 Sickened at Yellowstone, Grand Teton

Two of the country’s most beautiful national parks are reporting an ugly outbreak of illness. The National Park Service is warning visitors going to Yellowstone and Grand Teton national parks this summer to make an extra effort to wash their hands. In an announcement this week, the park service said 200 people, including visitors and park workers, have been stricken with norovirus, a nasty gastrointestinal illness that is highly contagious. Those sickened were visiting the park in northwestern Wyoming as …