By Ethan Covey
Poor hygiene and lax safety practices were linked to a large outbreak of acute gastroenteritis that has affected rafters and backpackers visiting Grand Canyon National Park.
Between April 1 and June 17, at least 222 rafters and backpackers became infected, likely with norovirus, one of the largest such outbreaks reported in the backcountry (MMWR Morb Mortal Wkly Rep 2022;71:1207-1211).
In May, the CDC was alerted about a growing number of acute gastroenteritis cases among people who