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６３例小儿急性呼吸道感染（ＡＲＩ）应用聚合酶链反应（ＰＣＲ）针对肺炎衣原体、肺炎支原体、沙眼衣原体、呼吸道合胞病毒、腺病毒进行５种病原联合检测。肺炎衣原体感染占第１位，阳性２２例，阳性率３４．９％（２２／６３），其中３岁以下小儿占１９例（１９／２２，８６．８％）。其次为呼吸道合胞病毒感染，阳性１９例，阳性率３０．２％（１９／６３）。混合感染７例，其中５例为呼吸道合胞病毒、肺炎衣原体感染。
63 cases of children with acute respiratory infection (ARI) polymerase chain reaction (PCR) against Chlamydia pneumoniae, Mycoplasma pneumoniae, Chlamydia trachomatis, respiratory syncytial virus, adenovirus five pathogenic joint detection. Chlamydia pneumoniae infection accounted for the first one, positive in 22 cases, the positive rate was 34.9% (22/63), of which 19 children under 3 years of age (19 / 22,86.8%). Followed by respiratory syncytial virus infection, 19 were positive, the positive rate was 30.2% (19/63). Mixed infection in 7 cases, of which 5 cases of respiratory syncytial virus, Chlamydia pneumoniae infection.