Another 230,000 visitors to California’s Yosemite National Park have received official notice regarding a possible deadly exposure to hantavirus. So far this year, nine hantavirus cases have been identified, three of them fatal. Officials tracked eight of these cases back to sleeping in canvas-walled cabins in Yosemite’s Curry Village.
Contact with rodent saliva, urine, and feces causes hantavirus. In the early stages, it appears to be the flu, but turns into a serious lung issue very quickly.