233 Ch 233. Intestinal Protozoa

Giardia (worldwide hiker’s diarrhea); Cryptosporidium (immunocompromise severe — HIV/transplant; water outbreaks Milwaukee 1993 + ongoing); Cyclospora (raspberries, basil cilantro, traveler); Microsporidia (HIV gut + ocular + disseminated); Cystoisospora (formerly Isospora, HIV chronic diarrhea); Blastocystis (controversial pathogenicity)。