Objective To compare efficacy of indirect immunofluorescence (IFA) and real‐time fluorescent polymerase chain re‐action(PCR) in detection of mycoplasma pneumonia in children .Methods A total of 137 children clinically diagnosed as Mycoplas‐ma pneumoniae(MP) infection were selected and divided into groups by age ,including <1 years old group(35 cases) ,1- <5 years old group(69 cases) and 5-15 years old group(33 cases) .Blood specimen and throat swabs were collected and detected by using IFA and real‐time fluorescent PCR .At the same time ,all of the selected children were treated with conventional therapy ,according to total effective rate ,positive coincidence rates of the two methods were statistically analysed by age .Results The positive coinci‐dence rates in children with MP infection <1 years old and 1- <5 years old detected by using real‐time fluorescent PCR were high‐er than that detected by using IFA ,while among children 5-15 years old ,the positive coincidence rate was higher detected by using IFA compared with that detected by using real‐time fluorescent PCR ,all had statistically significant differences (P<0 .05) .The o‐verall positive coincidence rates of the two methods were not significantly different(P>0 .05) .Conclusion IFA and real‐time fluo‐rescent PCR both could be used as effective methods for detecting MP ,but there are some differences of detective efficacy between the two methods in each age group .Therefore ,it is suggested that for children under 5 years old real‐time fluorescent PCR might be selected ,for children aged 5 years old and over IFA might be selected ,in order to improve the detection accuracy and provide better guidance to clinical medication .

Objective To invetigate the correlation between Kawasaki disease (KD) and mycoplasma pneumomiae (MP). Methods The medical records of 84 children diagnosed as KD in our hospital from March 2012 to February 2014 were retrospectively analyzed, and according to whether with mycoplasma infection or not ,they were divided into observation group and control group. The observation group included 43 cases with mycoplasma infection, and the control group in-cluded 41 KD patients without MP infection. White blood cell count (WBC), high sensitive C reactive protein (CRP), erythrocyte sedimentation rate (ESR), hemoglobin (HB), platelet count (PLT) were detected and analyzed in two groups. Patients of the two groups were compared in whether the existence of coronary artery lesions. Results Patients of the observation group without coronary artery injury accounted for 34.9%(15/43), significantly lower than that of the con trol group 58.5%(24/41), and the observation group with coronary lesions accounted for 65.1%(28/43), significantly higher than that of the control group 41.5%(17/41). The differences were statistically significant (P<0.05); CRP of the observation group was (68.9±14.7) mg/L, significantly higher than that of the control group (52.8±8.2) mg/L, and ESR of the observation group was (42.6 ±15.9) mm/h, significantly higher than that of the control group (21.6 ±6.1) mm/h. The differences were statistically significant (P<0.05). Conclusion MP is one of the causes of KD and has positive corre-lation with coronary artery injury of patients. The injury and inflammation reaction mediated by autoimmune reaction caused by MP is an important way to KD.