RESUMO
Objective To understand the detection situation of Mycoplasma pneumoniae (MP)and Chtamydia trachomatis (CT) in children with respiratory tract infection.Methods MP and CT were simultaneously measured by fluorogenic quantitative PCR in 1393 children patients with respiratory tract infection.Results The total detection rates of MP and CT were 30.4%,in which MP was 21 .8%,CT was 9.3% and MP complicating CT was 0.65%.In the season distribution,the detection rates of MP and CT were highest in summer.In the age distribution,the detection rate of MP in the over 3-year-old group was higher than that in the other age groups,the differences had statistical significance(P <0.05).The detection rate of CT in the less than 1-month-old group was higher than that in other age groups with statistical difference(P <0.05).Conclusion MP and CT are easy to be detected out in summer;MP is easy to be detected out in children over 3 years old than other age groups;MP is easy to be detected out in neonates than other age groups.Fluorogenic quantitative PCR is rapid,sensitive and highly specific for the diagnosis of MP and CT infec-tions.