Histoplasmosis is a spore that can be found in bat droppings. When droppings are disturbed or cleaned up these spores can become airborne. If breathed in, the spores can develop a fungus in the lungs. This can cause breathing problems and make people very sick. Great care should be used when cleaning up bat droppings including wearing a respirator and gloves. Droppings can be sprayed with bleach and water to keep spores from becoming airborne.
Fall is a time of migration for many bat species in North America, this is also when large numbers of bats may enter buildings and structures. Bats are looking for safe areas to mate and reproduce. The four main species of bats in Iowa are big brown bat, little brown, northern, and eastern bats. The big brown bat will over winter in attics and walls without migrating.