title: Host to an intruder.
authors.affiliation: Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md.
authors.forename: Scott
authors.initials: S
authors.lastname: Stephens
authors.forename: Cynthia D
authors.initials: CD
authors.lastname: Brown
authors.forename: Charles M
authors.initials: CM
authors.lastname: Wiener
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000175:diagnosis* / Q000628:therapy; D000328:Adult; D000818:Animals; D000981:Antiprotozoal Agents / Q000627:therapeutic use; D003967:Diarrhea / Q000469:parasitology; D016829:Giardia lamblia; D005873:Giardiasis / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D007787:Lactose Intolerance / Q000178:diet therapy; D008297:Male; D016919:Meningitis, Cryptococcal / Q000175:diagnosis* / Q000188:drug therapy; D008795:Metronidazole / Q000627:therapeutic use
chemical_list: D000981:Antiprotozoal Agents; D008795:Metronidazole