Bacterial hitch-hikers.
D000328:Adult; D002465:Cell Movement; D004823:Epididymitis / Q000209:etiology*; D006069:Gonorrhea / Q000150:complications; D006801:Humans; D008297:Male; D009344:Neisseria gonorrhoeae; D012669:Seminal Vesicles; D013094:Spermatozoa; D014649:Vas Deferens