肺炎支原体（ＭＰ）是急性呼吸道感染的常见病原微生物，我们对１４４例成人和６０例儿童患者（包括患肺炎、支气管炎、上呼吸道感染、气管炎等）做了血清肺炎支原体抗体ＩｇＭ的检测，结果如下。１　对象和方法１．１　对象　１４４例成人患者为我院呼吸科住院病人，年龄在２ Mycoplasma pneumoniae (MP) is a common pathogenic microorganism in acute respiratory infections. We detected serum IgM antibodies to Mycoplasma pneumoniae in 144 adult and 60 pediatric patients (including pneumonia, bronchitis, upper respiratory tract infection, bronchitis, etc.) The result is as follows. 1 objects and methods 1.1 object 144 cases of adult patients in our hospital inpatient respiratory disease, aged 2