Yosemite National Park officials say a second person has died of a rare, rodent-borne disease after visiting the park earlier this summer.
Spokesman Scott Gediman says health officials this weekend learned of a second death of a person who contracted hantavirus after visiting the park in June.
There is one other confirmed case of the illness, and a fourth is being investigated.
Park officials are warning visitors who stayed in tent cabins at Curry Village from mid-June through the end of August to beware of any symptoms of hantavirus, which can include fever, aches, dizziness and chills.
Federal health officials say symptoms may develop up to five weeks after exposure to urine, droppings or saliva of infected rodents.