Humans and this "armored" mammal are among the only known animals that carry the bacterium that causes leprosy
In addition to an 
unexpected genetic predisposition for leprosy, armadillos have one... [DOC] [TLE] Armadillos Give Humans Leprosy - Earthweek [PAR] May 6, 2011 ... Aside from humans, the armored mammals are among only a handful of other 
known natural ... More than 20 percent of armadillos tested in parts of the South 
have been found infected with the bacterium that causes the treatable disease.