Sexual transmission of enteric pathogens.
D004748:Entamoeba histolytica / Q000302:isolation & purification; D005872:Giardia / Q000302:isolation & purification; D006716:Homosexuality; D006801:Humans; D007410:Intestinal Diseases / Q000635:transmission*; D007421:Intestine, Small / Q000469:parasitology; D008297:Male; D011528:Protozoan Infections / Q000635:transmission*