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目的了解重庆市渝北区百日咳发病情况及流行病学特征,为制定预防和控制策略提供科学依据。方法收集传染病报告系统中重庆市渝北区百日咳发病资料,采用描述性流行病学方法对其三间分布及免疫史进行分析。结果2005-2015年重庆市渝北区累计报告百日咳病例76例,无死亡病例,年均报告发病率为0.65/10万,自2010年起逐年升高(0.10/10万~3.21/10万);病例主要集中在1岁以下儿童,共65例(85.53%),不足3月龄病例22例(28.95%);6~8月为发病高峰;城市年均报告发病率(12.75/10万)明显高于农村(2.25/10万);2015年DPa T第1~4剂次及时接种率分别为68.18%、58.82%、46.15%和33.33%。结论重庆市渝北区百日咳报告发病率近年来处于较高水平,应加强病例监测和处置,提高DTa P疫苗及时接种率。
Objective To understand the prevalence and epidemiological characteristics of whooping cough in Yubei district of Chongqing, and to provide a scientific basis for formulating prevention and control strategies. Methods The incidence data of pertussis in Yubei District of Chongqing City were collected from the infectious disease reporting system. The distribution and immunization history of pertussis were analyzed by descriptive epidemiological method. Results In 2005-2015, a total of 76 cases of pertussis were reported in Yubei district of Chongqing. There were no deaths and the average annual incidence rate was 0.65 / 100 000. The annual average increased from 0.10 to 3.21 / ; Cases were mainly concentrated in children under 1 year old, a total of 65 cases (85.53%), less than 3 months in 22 cases (28.95%); peak incidence from June to August; the annual average reported incidence of urban (12.75 / 100000) Which was significantly higher than that in rural areas (2.25 / 100000). The timely inoculation rates of DPa T 1 ~ 4 in 2015 were 68.18%, 58.82%, 46.15% and 33.33% respectively. Conclusion The prevalence of pertussis reported in Yubei district of Chongqing Municipality is at a high level in recent years. Monitoring and treatment of cases should be strengthened to improve the timely vaccination rate of DTa P vaccine.