Epidemiological Characteristics and Analysis of Mycoplasma Pneumoniae Infection in Children in Dalian in the Autumn of 2023

Hua Jin; Chen Yucun; Yang Shihong

doi:10.3969/j.issn.1001-568X.2025.11.0009

Abstract：OBJECTIVE To analyze the epidemiological characteristics and clinical manifestations of Mycoplasma pneumoniae(MP)infection in children aged 0～14 in Dalian in the autumn of 2023,and to provide reference for developing effective prevention and control measures and the optimization of treatment strategies.METHODS 492 Children aged 0～14 in some areas of Dalian from September to October 2023 were selected as the survey subjects to study on the infection rate,age and gender characteristics,clinical manifestations,distribution of medical visits and medication use of Mycoplasma pneumoniae in children with respiratory tract infections.RESULTS The infection number among 492 children was 197(40.04％).18.28％of the 93 children diagnosed with respiratory infections were infected with Mycoplasma pneumoniae.Children aged 0～14 can be infected with Mycoplasma pneumoniae in all age groups,with the highest infection rate of 26.09％in the 4～7 age group.The main clinical manifestation of Mycoplasma pneumoniae infection in children was high fever(＞38℃),with an average course of 11 days longer than respiratory infections(P＜0.05).13(76.47％)of IT children with Mycoplasma pneumoniae choosed tertiary hospitals for treatment,while 15(88.24％)children with Mycoplasma pneumoniae used macrolide antibiotics.CONCLUSION Children aged 4～7 years were susceptible to Mycoplasma pneumoniae infection among children aged at 0～14.Children with Mycoplasma pneumoniae had a longer course of illness,and non-standard use of macrolide antibacterial drugs was widespread.