Two more cases of hantavirus have been linked to Yosemite National Park, including one that resulted in the death of a West Virginia resident, officials announced Thursday.

Three people have now died of the rare, rodent-borne disease after visiting the park this summer; five others have been sickened.

Yosemite officials announced the two additional cases; the death was confirmed by the Kanawha-Charleston Health Department in West Virginia, which said that a Kanawha County resident who visited the park “in recent months” died of the disease.

Yosemite officials previously traced the cases to the “signature tent cabins” in the park’s popular Curry Village campground, saying a design flaw allowed mice to get inside the walls of the insulated cabins. But Thursday, park officials said that although seven of the cases had been linked to the cabins, one was believed to have originated in the High Sierra Camps, a different area of the park.