Ten Thousand Could Have Been Exposed to Hantavirus

Hantavirus has already killed two people who visited Yosemite National Park.

Four others are in critical condition from contracting the disease.

All six of the victims stayed at the Curry Village tent cabins.

Somewhere between seven and ten thousand people have visited the California park over the summer.

Three thousand of those have already been sent letters and emails, warning them of the possible danger.

Officials recommend that all who stayed at the village, be checked by a doctor for any signs of the virus.