Diseases Pigeons Carry Pigeons are known carriers of several diseases, the two most common being cryptococcosis and histoplasmosis. Cryptococcosis is spread via their droppings and causes mild pulmonary infections. If left untreated, the illness spreads through the rest of the body and eventually attacks the central nervous system. Early symptoms of the disease include bumps that resemble acne or ulcers just below the surface of the skin. Histoplasmosis causes flu-like symptoms such as high fever, and severe cases can lead to pneumonia or even death. Pigeon droppings cultivate the growth of the fungus that causes the disease. People then inhale the spores into their lungs and get infected. Pigeons can also carry psittacosis and toxoplasmosis, though reported cases are rare. Leave it to the Professionals Pigeon infestations are common in urban and suburban neighborhoods. While many do-it-yourself methods of pigeon control are available, individuals risk contracting any of the aforementioned diseases when they take removal into their own hands. Instead, homeowners are advised to call local pest specialists, like those at Critter Control. Licensed and certified professionals know the best ways to eliminate infestations of pigeons, as well as how to properly clean contaminated properties and possessions.