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目的 探讨肺炎衣原体 (Cpn)在婴儿肺炎中的感染情况。 方法 对符合肺炎诊断标准的 1岁以内患儿 2 6 9例 ,使用荧光免疫方法检测Cpn抗体 ,并进行统计学分析。 结果 2 6 9例肺炎患儿中 ,急性Cpn感染的感染率为 15 2 % ,既往感染的感染率为 2 4 5 % ,。 1999年检测 134例中 ,Cpn急性感染为 4 5 % ,既往感染为2 5 4% ;2 0 0 0年检测 135例中 ,Cpn急性感染为 2 5 9% ,既往感染为 2 3 7%。两年度比较 ,Cpn既往感染率接近(P >0 0 5 ) ,而Cpn急性感染率差异有非常显著意义 (P <0 0 1) ,2 0 0 0年急性感染率比 1999年明显增高。结论 Cpn是婴儿肺炎的重要病原之一 ,且具有流行性。
Objective To investigate the infection of Chlamydia pneumoniae (Cpn) in infantile pneumonia. Methods A total of 269 children aged less than 1 year were diagnosed according to the diagnostic criteria of pneumonia. Cpn antibody was detected by fluorescence immunoassay and analyzed statistically. Results In 269 children with pneumonia, the infection rate of acute Cpn infection was 15 2%, and the infection rate of previous infection was 24.5%. Among the 134 cases detected in 1999, the infection rate of Cpn was 45% and that of previous infection was 25.4%. Among the 135 cases detected in 2000, the infection rate of Cpn was 25.9% and the previous infection was 23.7%. In the past two years, the past infection rate of Cpn was close (P> 0.05), but the difference of Cpn acute infection rate was very significant (P <0.01). The infection rate in 2000 was significantly higher than that in 1999. Conclusions Cpn is one of the most important pathogens in infant pneumonia and is epidemic.