A bat colony discovered in the attic of Jackson Lake Lodge at Grand Teton National Park has put hundreds of guests at risk of rabies exposure. Officials say up to 500 visitors from 38 states and seven countries may have stayed in affected rooms between May 5 and July 27, 2025. While some bats tested negative for rabies, most were not captured, leaving uncertainty. Health authorities are urging anyone who stayed in those rooms and encountered bats to seek immediate medical advice and consider rabies post-exposure treatment.