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应用聚合酶链反应技术（ＰＣＲ），对３４１例ＳＴＤ门诊病人的生殖道沙眼衣原体（ＣＴ）感染进行了检测。结果显示：ＳＴＤ门诊患者的沙眼衣原体感染率为１６４２％（５６／３４１）。另对ＣＴ阳性的ＳＴＤ患者，同时检查了淋球菌（ＮＧＨ）和解尿支原体（ＵＵ），发现单一ＣＴ感染率为２６７９％（１５／５６），混合感染占较大比例，ＣＴ＋ＮＧＨ或ＣＴ＋ＵＵ和ＣＴ＋ＵＵ＋ＮＧＨ的感染率分别为３９２９％（２２／５６）和３３９３％（１９／５６）。并对ＣＴ阳性的２８例患者进行随访阴转调查。结果：于第１、２、４、６、８周内，ＰＣＲ检测阴转率为２８５％，４２８６％，５７１４％，９２８６％和１００％，阴转时间为２０～６０天，平均２５±９３天。
The reproductive tract Chlamydia trachomatis (CT) infection in 341 STD outpatients was detected by polymerase chain reaction (PCR). The results showed that the prevalence of Chlamydia trachomatis in STD clinic was 16.42% (56/341). Another CT positive STD patients, both gonococcal and urinary mycoplasma (UU) were examined. The single CT infection rate was 2679% (15/56), mixed infection accounted for a large proportion, CT + NGH or CT + UU and The infection rates of CT + UU + NGH were 3929% (22/56) and 3393% (19/56) respectively. 28 patients with positive CT were followed up for investigation. Results: In the 1st, 2nd, 4th, 6th and 8th week, the negative conversion rate of PCR was 285%, 4286%, 5714%, 9286% and 100%, and the negative conversion time was 20 ~ 60 days, an average of 25 ± 9 3 days.