Wyoming health officials urge rabies shots for hundreds exposed via bat-infested park cabins.

Health officials in Wyoming are informing hundreds of people across 38 states and seven countries who may have been exposed to rabies from bat-infested cabins at Grand Teton National Park. While none of the bats found in the cabins have tested positive for rabies, officials recommend prophylactic shots for those who stayed in the cabins and fit certain criteria, such as being deep sleepers or young children. A five-shot regimen over two weeks can prevent illness if given soon after exposure. The cabins have been closed since July 27.