咳嗽是小儿呼吸科就诊者最常见的主诉症状之一 ,而以咳嗽作为唯一或主要症状并持续难愈的慢性咳嗽往往成为家长和医生关注的难点。非典型微生物包括肺炎支原体(mycoplasmapneumoniae ,MP)、肺炎衣原体 (chlamydiapneumo niae ,CP)、沙眼衣原体 (chlamydiatrachmatis ,CT)以及嗜 Coughing is one of the most commonly reported symptoms of pediatric respiratory patients, and chronic cough, with or without cough as the sole or major symptom, is often a concern for parents and doctors alike. Atypical microorganisms include mycoplasma pneumoniae (MP), chlamydia pneumonia (CP), chlamydiatrachmatis (CT), and addicts