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.
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.
Raft trips hit hard by the Grand Canyon's largest recorded norovirus outbreak, CDC reports kuer.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kuer.org Daily Mail and Mail on Sunday newspapers.