It still isn't clear what caused the runners to become sick, but health officials are now testing ground samples taken from the race site to determine the cause of the illnesses.
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We Are All Sick': Infectious Diseases Spread Across Gaza - The New York Times
1,000 runners get norovirus after French mud run : r/worldnews
More than 1,000 people were likely sickened by norovirus after French mud run - The Washington Post
Are mud runs dangerous? Sickness and death linked to the muddy obstacle races, popular in Oregon
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