Discharge: immunocompetent or low risk patients with unclear etiology but normal examination findings after rehydration
Admission: patients with life-threatening volume loss, failure to improve after resuscitation, electrolyte abnormalities requiring gradual and/or significant correction, toxic or ill-appearing, intolerant of PO intake or significant risk factors (CD4 < 100, chemotherapy, transplant, etc.)
Pearl: Obtain contact information for patients PCP and specialist providers (oncology, infectious disease, rheumatology, etc). Consultation and coordination of care is especially important for patients with significant and relevant co-morbidities
Microsporidium
Microsporidiosis
Eikenella
Cryptosporidiosis
Cyclospora
CMV 
Chlamydophila
MAC 