Thousands exposed to killer virus
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Up to 10,000 people may be exposed to deadly virus after staying at California's Yosemite National Park over the summer.
ABOUT 10,000 visitors to Yosemite National Park could have been exposed to a virus that kills one in three victims and cannot be treated, officials say.
So far, the rare hantavirus pulmonary syndrome, or HPS, has been confirmed in six people - two of whom have died - while a ''multiple'' number of other suspected cases of the rodent-borne disease are being investigated.
Authorities at Yosemite, in California, closed the Signature Tent Cabins last week at Curry Village, a popular lodging area in Yosemite Valley, the tourist centre of the park.
Danger ... thousands of visitors to Yosemite National Park could have come in contact with a deadly virus. Photo: Alamy
The US National Park Service has written to about 2900 people who booked stays in the Boystown area tent lodgings between June 10 and August 24, alerting them to keep an eye out for symptoms of HPS.
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The Centres for Disease Control and Prevention put the number of people who actually stayed in the tent cabins - including guests - at 10,000.
''On August 24, 2012, the tents were disinfected and visitors were relocated. People who stayed in the tents between June 10 and August 24 may be at risk of developing HPS in the next six weeks,'' it said on Friday.
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Thousands exposed to killer virus