title: Serological evidence of Chlamydia trachomatis infection in non-immunocompromised adults with pneumonia.
abstract: Serological evidence of Chlamydia trachomatis infection in three non-immunocompromised adults with pneumonia is presented. Complement fixation (CF) tests indicated chlamydial infections in all three patients. These illnesses would have been erroneously regarded as ornithosis if microimmunofluorescence (Micro-IF) tests had not been performed because the CF test detects genus-specific antibodies while the Micro-IF test reveals species-specific antibodies.
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis*; D002690:Chlamydia Infections / Q000175:diagnosis*; D002692:Chlamydia trachomatis / Q000276:immunology*; D002691:Chlamydophila psittaci / Q000276:immunology; D003168:Complement Fixation Tests; D003937:Diagnosis, Differential; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000175:diagnosis* / Q000209:etiology; D009956:Psittacosis / Q000175:diagnosis
chemical_list: D000907:Antibodies, Bacterial