Histoplasmosis is a respiratory disease caused by a fungus that grows in soil enriched by animal droppings, including those from bats. Ninety percent of all reported cases in humans come from the Ohio and Mississippi River valleys and adjacent areas where warm, humid conditions favor fungal growth. The disease is rare or nonexistent in most of Canada and in the far northern and western United States.

Rabies is a preventable viral infection of the central nervous system in mammals. The virus is typically transmitted by the bite of an infected animal. People can, in rare instances, contract rabies if infectious material, such as saliva, from a rabid animal gets into their eyes, nose, mouth or a wound. You cannot get rabies from just seeing a bat, from simply being in a room with a bat or from contact with bat guano (feces), urine or blood. And the vast majority of bats do not have rabies.