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| 安庆市2017—2018年流行性感冒流行病学分析 |
| Epidemiological analysis of influenza in Anqing City from 2017 to 2018 |
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| DOI：10.3969/j.issn.1007-8134.2020.04.013 |
| 中文关键词: 流感监测 聚集性疫情 流行病学 病原学 |
| 英文关键词: influenza surveillance aggregated epidemics epidemiology etiology |
| 基金项目: |
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| 中文摘要: |
| 目的 分析安庆市2017—2018年流行性感冒（流感）监测结果，掌握本地流感流行特征，为制定防控策略提供科学依据。方法 登录中国流感监测信息系统，对安庆市2017—2018年流感样病例（influenza like illness, ILI）数据、病原学数据进行统计学分析。结果 安庆市哨点监测ILI百分比为3.46%，流感监测网络实验室检测流感病毒阳性率为13.84%，主要型别为新H1N1，占42.18%，流感病毒阳性率呈现“一前一后，一小一大”的夏季和冬季高峰，＜15岁组和≥15岁组流感病毒阳性率的差异有统计学意义（χ2=4.648，P=0.031）。安庆市共报告聚集性疫情23起，其中16起发生在城市，7起发生在农村，城市和农村的流感病毒阳性率的差异无统计学意义（χ2=3.181，P=0.074）。结论 安庆市2017—2018年哨点监测流感活动呈双峰分布，流感病毒以新H1N1和乙型Yamagata系为主，聚集性疫情上升明显，建议做好学校聚集性疫情的防控工作。 |
| 英文摘要: |
| Objective To analyze the results of influenza surveillance in Anqing City from 2017 to 2018, understand local epidemiological characteristics, and provide scientific basis for the formulation of influenza prevention and control strategy. Methods The influenza like illness (ILI) data and etiological data of Anqing City from 2017 to 2018 were statistically analyzed by logging in China Influenza Surveillance Information System. Results Through sentinel monitoring, the ILI% was 3.46% in Anqing City. The positive rate of influenza virus was 13.84%, among which the dominant type was new H1N1, accounting for 42.18%. The positive rate of influenza virus showed the peak in summer and winter with the characteristics of “one after one and one small one big”. The difference of positive rate between less than 15 years old group and above 15 years old group was statistically significant (χ2=4.648, P=0.031). A total of 23 aggregated outbreaks were reported in Anqing City, including 16 ones in urban area and 7 ones in rural area. The difference of positive rate between urban area and rural area was not statistically significant (χ2=3.181, P=0.074). Conclusions Influenza activity in Anqing City shows a bimodal distribution from 2017 to 2018, New H1N1 and Yamagata are the main influenza viruses. The aggregated epidemics has increased significantly. It is suggested to conduct prevention and control of the aggregated epidemics in schools. |
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