Dr. MFH, I certainly agree with you. In all cases, one must weight risks versus rewards. For myself, feral cats die of lead poisoning and carrion fowl take care of the rest. Most often is the case that the parasite dies when the host expires.
As to the other claims made by my fellow collegue, FWIW, Dr. Taylor...,
Psittacosis is caused by Chlamydia psittaci and is usually transmitted from infected birds to humans. The infected birds excrete the bacteria in the feces and nasal discharges. Humans become infected breathing in the organism when the urine, respiratory secretion, or dried feces of infected birds is aerosolized (i.e., dispersed in the air as very fine droplets or dust particles). ther sources of exposure include mouth-to-beak contact, a bite from an infected bird, and handling the plumage and tissues of infected birds. Thus, given the scenario thread, this disease in a non-starter as it relates to cats, feral or otherwise.
Tuberculosis is primarily an airborne disease and is spread from person to person in tiny microscopic droplets when a TB sufferer coughs, sneezes, speaks, sings, or laughs. Only people with active disease are contagious. It usually takes lengthy contact with someone with active TB before a person can become infected. On average, people have a 50 percent chance of becoming infected with M. tuberculosis if they spend eight hours a day for six months or 24 hours a day for two months working or living with someone with active TB. Adequate ventilation is the most important measure to prevent the transmission of TB. Thus, again, given the scenario thread, this disease in a non-starter as it relates to cats, feral or otherwise.
Histoplasmosis is a disease caused by H. capsulatem, which grows in soil and material contaminated with bat or bird droppings. Spores become airborne when contaminated soil is disturbed. Breathing the spores causes infection. The disease is not transmitted from an infected person to someone else. Here again, given the scenario thread, this disease in a non-starter as it relates to cats, feral or otherwise.
Coccidiomycosis is caused by Coccidioides immitis, a soil saprophyte found mainly in desert areas of the south-western USA. It can cause a kennel-cough-like syndrome in dogs. Feline infection is very rare:
As the old saying goes, "An informed decision is the right decision."
Regards,
Docbones