Yosemite doubles scope of hantavirus warning to 22,000; third death confirmed
By NBC News staff and wire reports
Updated at 8:12 a.m. ET: A third person has died from the rare, rodent-carried hantavirus after visiting Yosemite National Park, bringing the total number of infected persons to eight and prompting warnings that the virus is not contained to just one area of the park, health officials said.
Yosemite National Park doubled the scope of its warning on Thursday to some 22,000 visitors who may have been exposed to the deadly mouse-borne disease.
U.S. officials had recently sounded a worldwide alert, saying that up to 10,000 people were thought to be at risk of contracting Hantavirus pulmonary syndrome (HPS) after staying at "Signature Tents" at the Curry Village lodging area between June and August.
As many as 2,500 of those individuals live outside the United States, health officials said.
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