ABSTRACT

Cryptosporidium spp. inhabit the brush borders of the gastrointestinal, respiratory, and sometimes renal epithelium of various vertebrates, causing enterocolitis, diarrhea, and cholangiopathy in humans.1,2 Immunocompetent children and adults with cryptosporidiosis usually have a short-term illness accompanied by watery diarrhea, nausea, vomiting, and weight loss. In immunocompromised persons, however, the infection can be protracted and life-threatening. In animals, cryptosporidiosis is an important cause of diarrhea in neonatal animals. Respiratory and gastric cryptosporidiosis causes substantial mortality in chickens and snakes, respectively.3