Which serologic findings suggest chlamydial genitourinary infections (chlamydia)?

Updated: Sep 25, 2018
  • Author: Shahab Qureshi, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

On a complement fixation test, all patients with lymphogranuloma venereum (LGV) have complement-fixing antibody titers higher than 1:16. Fifteen percent of men with urethritis and 45% of women with endocervical infection have titers of 1:16 or greater. The microimmunofluorescence test is more sensitive than the complement fixation test. Results are positive in at least 99% of women with cervicitis and in 80-90% of men with urethritis.


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