title: Asymptomatic gonorrhea in men: caused by gonococci with unique nutritional requirements.
abstract: In a retrospective case-control study, gonococci with nutritional requirements for arginine, hypoxanthine, and uracil were recovered from 24 of 25 men with asymptomatic gonorrhea and 10 of 25 men with symptomatic gonorrhea (P = .0001). These strains represent a smaller proportion of gonococcal isolate from blacks than from whites. Asymptomatic urethral infection is important in the epidemiology of gonorrhea, particularly among whites.
mesh_terms: D001120:Arginine / Q000378:metabolism; D044383:Black People; D006069:Gonorrhea / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D007042:Hypoxanthines / Q000378:metabolism; D008297:Male; D009344:Neisseria gonorrhoeae / Q000378:metabolism*; D014498:Uracil / Q000378:metabolism; D014526:Urethritis / Q000382:microbiology*; D014861:Washington; D044465:White People; D001741:Black or African American
chemical_list: D007042:Hypoxanthines; D014498:Uracil; D001120:Arginine