The pertussis surveillance system has been established since 2009 in Tianjin, and continuously improved over the past 10 years. This system determines the definition and classification of pertussis, establishes simple and feasible sampling methods and laboratory detection methods in clinical practice, standardizes the report management of pertussis cases and the treatment of epidemic situations. After the implementation of the surveillance system, the number of reported pertussis cases increased from 26 in 2009 to 802 in 2017, the number of diagnosed cases increased from 19 in 2009 to 662 in 2017, the reported incidence rate of pertussis increased from 0.16/100 000 in 2009 to 4.28/100 000 in 2017, and the number of medical institutions of reporting perutssis cases increased from 2 in 2009 to 53 in 2017. The specimen collection rate of the reported cases reached up to 93.66%. These results show that the sensitivity of pertussis surveillance has been improved and show that the data from the surveillance system may reflect more precisely the epidemical characteristics of perutssis in Tianjin.
天津市从2009年开始建立百日咳监测体系，10年来不断完善。该监测体系明确了百日咳监测病例的定义及病例分类，建立了统一的、临床上简单可行的采样方法和实验室检测手段，规范了百日咳病例的报告管理及疫情处置措施。该监测体系实施以后，百日咳报告病例数显著上升，由2009年的26例增加到2017年的802例；诊断病例数由2009年的19例增加到2017年的662例；报告百日咳发病率由2009年的0.16/10万增加到2017年的4.28/10万；报告百日咳病例的医疗机构数由2009年的2家增加到2017年的53家；所报告病例的标本采集率达到93.66%。上述监测结果证明该监测体系明显提高了天津市百日咳监测的灵敏度，更加真实准确地反映了天津市百日咳的流行病学特征，为免疫策略的调整提供了参考依据。