| 2015—2019年四川省流感哨点监测结果分析 |
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| 引用本文： | 周丽君,武依,程秀伟,袁珩,周兴余,李知睿,胡风淼,肖崇堃.2015—2019年四川省流感哨点监测结果分析[J].现代预防医学,2021,0(10):1887-1890. |
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| 作者姓名： | 周丽君 武依 程秀伟 袁珩 周兴余 李知睿 胡风淼 肖崇堃 |
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| 作者单位： | 1. 四川省疾病预防控制中心，四川 成都 610041；2. 四川大学华西公共卫生学院/华西第四医院 |
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| 摘 要： | 目的 描述四川省2015—2019年流感病毒流行特征，为疫情防控提供依据。方法 对流感监测系统上报的流感样病例数据开展回顾性流行病学分析。结果 2015—2019年间，四川省共监测流感样病例标本131 477份，其中阳性标本23 844份，流感阳性率为18.14%。2015—2019年四川省优势流感亚型主要为甲型H1N1，季节性H3N2和B(Victoria)系流感。流感阳性率随月份、季节而改变，四川省流感阳性率高峰主要出现在冬季，其次为秋季。甲型流感主要在秋冬季流行，乙型流感主要在冬春季流行。流感病毒阳性检出率在5～14岁组年龄段最高。结论 四川省流感有明显的冬季流行高峰，各型别呈交替流行。秋冬季应加强流感防控工作；甲型和乙型流感好发于5～14岁群体，应继续加强对儿童学生流感的防控。
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| 关 键 词： | 流感样病例 病原学监测 流行病学 |
Influenza surveillance analysis in Sichuan from 2015 to 2019 |
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| ZHOU Li-jun,WU Yi,CHENG Xiu-wei,YUAN Heng,ZHOU Xing-yu,LI Zhi-rui,HU Feng-miao,XIAO Chong-kun.Influenza surveillance analysis in Sichuan from 2015 to 2019[J].Modern Preventive Medicine,2021,0(10):1887-1890. |
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| Authors: | ZHOU Li-jun WU Yi CHENG Xiu-wei YUAN Heng ZHOU Xing-yu LI Zhi-rui HU Feng-miao XIAO Chong-kun |
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| Affiliation: | *Center for Disease Control and Prevention of Sichuan, Chengdu, Sichuan 610041,China |
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| Abstract: | Objective To describe the epidemiological pattern and characteristics of influenza in Sichuan for the period from2015 to 2019, and to provide basis for epidemic prevention and control. Methods A retrospective epidemiological analysis was conducted on the influenza-like case data reported by the influenza surveillance system. Results During 2015 and 2019,a total of 131 477 influenza-like case specimens were monitored in Sichuan Province, of which 23 844 were positive, with an influenza positivity rate of 18.14%. The dominant influenza subtypes in Sichuan Province in 2015-2019 were influenza A(H1 N1), seasonal H3 N2 and B(Victoria) lineage influenza. Influenza positivity rate changed with month and season, and the peak of influenza positivity rate in Sichuan Province mainly occurred in winter, followed by autumn. Influenza A was prevalent mainly in autumn and winter, while influenza B was prevalent mainly in winter and spring. The positive detection rate of influenza virus was the highest in the age group of 5-14 years. Conclusion There is a clear winter epidemic peak of influenza in Sichuan Province, with alternating epidemics of each type. Influenza prevention and control should be strengthened in autumn and winter; influenza A and B are prevalent in the age group of 5-14 years; and the prevention and control of influenza in children and students should continue to be strengthened. |
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| Keywords: | Influenza-like cases' target='_blank'>" target="_blank"> |
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