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The National Park Service is investigating a mysterious illness affecting rafters at the Grand Canyon, with symptoms reported after trips in recent weeks. Speculation about the cause includes mosquito-borne illnesses such as dengue fever and chikungunya, although these are rare in the U.S. The NPS and Arizona health officials have not yet commented on the situation.
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The National Park Service is investigating a mysterious illness affecting rafters at the Grand Canyon, with symptoms reported after trips in recent weeks. Speculation about the cause includes mosquito-borne illnesses such as dengue fever and chikungunya, although these are rare in the U.S. The NPS and Arizona health officials have not yet commented on the situation.
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Grand Canyon mystery illness reportedly triggers NPS investigation after rafters report alarming symptoms
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