Hantavirus warning to 1,700 Yosemite campers

The warning applies to visitors who stayed in the
cabins at Curry Village from mid-June onward 

(USA) Yosemite National Park is warning 1,700 visitors who stayed in some of its tent cabins this summer that they may have been exposed to a deadly virus.

Hantavirus pulmonary syndrome has been blamed for the deaths of two campers who stayed at the Californian park.

The disease can be carried in the urine, saliva and faeces of infected deer mice, and symptoms can appear as late as six weeks after exposure.

Two other infected campers were expected to survive.

The first death was reported earlier this month, and one of the victims was identified as a 37-year-old man from the San Francisco Bay area.

There is no specific treatment for the hantavirus, which has a fatality rate of 30%.