This past spring Grand Canyon National Park became the site of an extended norovirus outbreak, with more than 200 cases of gastrointestinal illness among rafters and backpackers.
This past spring Grand Canyon National Park became the site of an extended norovirus outbreak, with more than 200 cases of gastrointestinal illness among rafters and backpackers.
This past spring Grand Canyon National Park became the site of an extended norovirus outbreak, with more than 200 cases of gastrointestinal illness among rafters and backpackers.
The CDC is looking into a stomach bug outbreak at the Grand Canyon knpr.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from knpr.org Daily Mail and Mail on Sunday newspapers.