Clinical manifestations are wide ranging and typically affect immunosuppressed hosts (e.g. HIV/AIDS, long-term steroid use, transplant and chemotherapy patients), travelers, children, and the elderly. The most common manifestation is copious diarrhea with volume depletion leading to electrolyte derangements.
Profuse watery diarrhea with massive fluid loss
Cholangitis and acalculous cholecystitis
Disseminated infection
Myositis
Self-limited diarrhea
Microsporidium
Microsporidiosis
Eikenella
Cryptosporidiosis
Cyclospora
CMV 
Chlamydophila
MAC 