The common cold is the most common disease, as a person gets it at least fout times in a year. Answer: Even more common are peridonatal diseases like tooth decay and gingiivitis. Some researchers...
testicular feminazation syndrom
Cancer,AIDS
An animal can get worms in the heart organs ect.and rabies is a good one
Mareks, Typhus, Coccidious, Pullorium. Those are the most prevalant.