Bat guano is a carrier of the soil fungus histoplasma capsulatam. The spores of this fungus are microscopic and airborne and they can easily get into the living areas of your home. If inhaled, the spores of the fungus can cause a disease called histoplasmosis, which is an infection of the lungs. Another serious risk from bats, although rare, is the possibility of contracting rabies from a bite.
What do you do if your home has bats? Typically, you would need to hire a professional wildlife removal company. These folks know how to safely and humanely remove bats (if there are a small number) or how to encourage them to leave on their own. In that case, they allow an exit from the home but make it impossible for the bats to re-enter. At the same time, they don protective suits and masks and remove all of the guano. Eliminating bats from your home is not cheap, therefore getting regular home and pest inspections are strongly recommended because we go into spaces that are rarely seen by the homeowner and that can make all the difference when it comes to discovering unwanted roommates.