title: Prevalence of chlamydial infections in male patients with nongonococcal urethritis.
abstract: Direct examination of urethral smears made evident the presence of chlamydial infection in 162 (38.1%) of 425 male patients with nongonococcal urethritis. Serum antibodies to the group antigen could be detected by complement fixation and microagglutination reactions only in about 50% of the cases with chlamydial infection. The proportion of chlamydial strains isolated in chick embryos was rather low (14.8%) and the isolation rate appeared to correlate with the abundance of urethral secretion.
mesh_terms: D000372:Agglutination Tests; D000907:Antibodies, Bacterial / Q000032:analysis; D002692:Chlamydia trachomatis / Q000276:immunology / Q000302:isolation & purification; D003168:Complement Fixation Tests; D006801:Humans; D008219:Lymphogranuloma Venereum / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D014521:Urethra / Q000378:metabolism; D014526:Urethritis / Q000175:diagnosis / Q000209:etiology*
chemical_list: D000907:Antibodies, Bacterial