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US officials warn 39 countries about risk of hantavirus among travellers to Yosemite

BMJ 2012; 345 doi: http://dx.doi.org/10.1136/bmj.e6054 (Published 10 September 2012) Cite this as: BMJ 2012;345:e6054
  1. Bob Roehr
  1. 1Washington, DC

Six people have become infected and three have died in an outbreak of the rare but often lethal hantavirus infection in Yosemite National Park in California. The outbreak has been traced to a group of cabins and tents at the popular tourist destination. More than four million people a year visit the park.

“Early medical attention and diagnosis of hantavirus are critical,” park superintendent Don Neubacher said in a released statement. “We urge anyone who may have been exposed to the infection to see their doctor at the first sign of symptoms and to advise them of the potential of hantavirus.”

All cases so far have involved Americans, mostly from California. But as many as 10 000 summer visitors could …

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