Second Death of Hantavirus From Yosemite

Hantavirus has killed a second person, who had stayed at Curry Village in Yosemite.

Two other people have been made sick by the disease.

Humans generally contract the disease when they inhale invisible particles of mouse urine or droppings.

All four of the infected stayed in the "Signature Tent Cabins" of the National Park, located in California.

It is the third time that the virus has made an appearance at the park, having done so previously in 2000 and 2010.

Officials at the park have already begun increased inspections and extra cleaning of all the rooms.

There is no known treatment for the disease, which has proved to be around thirty percent fatal.

Since it was identified in 1993 there have been 587 documented cases in the US.