2013-2016年北京市密云区猩红热病原学监测

Pathogenic surveillance of scarlet fever from 2013 to 2016 in Miyun district,Beijing

目的分析北京市密云区猩红热病原学检测结果,为临床诊断猩红热提供实验室依据。方法分析密云区2013-2016年监测医院临床诊断为猩红热/链球菌感染/扁桃体炎/咽峡炎的病例咽拭子标本进行病原体分离培养和生化鉴定结果。结果从673份患者的咽拭子标本中分离出A群乙型溶血性链球菌29份,阳性率为4.31%;猩红热病例复核诊断阳性率为18.75%;猩红热发病主要集中在每年5-7月并于第24、25周阳性率出现高峰;发病人群以学生和幼托儿童为主。结论医疗机构应开展猩红热病原学检测,为科学防控猩红热提供实验室依据;学生和幼托儿童是重点防控人群,发病高峰前应做好防控准备。

Objective To perform pathogenic surveillance of scarlet fever in Miyun district,and to provide laboratory basis for clinical diagnosis of scarlet fever. Methods The throat swab were collected from cases who were clinically diagnosed as scarlet fever,streptococcal infection,tonsillitis,or isthmitis for initial pathogen separation and culture in Miyun district from2013 to 2016. Results Among 673 throat swabs,29 strains of Group A β-hemolytic streptococcus were isolated,with the positive rate of 4. 31%. The positive rate in reexamination of scarlet fever cases was 18. 75 %. The incidence of scarlet fever incidence was peaked in May and June. Patients were mainly pupils and nursery children. Conclusion The detection of scarlet fever in medical institutions can provide the etiology basis for clinical diagnosis of scarlet fever. The pupils and nursery children should be focused before outbreaks.