罗飞, 王晶, 何为涛, 张超, 闭福银, 曾竣, 林玫. 2018-2022年广西壮族自治区流感样病例暴发疫情流行特征[J]. 疾病监测, 2022, 37(11): 1453-1457. DOI: 10.3784/jbjc.202205160219
引用本文: 罗飞, 王晶, 何为涛, 张超, 闭福银, 曾竣, 林玫. 2018-2022年广西壮族自治区流感样病例暴发疫情流行特征[J]. 疾病监测, 2022, 37(11): 1453-1457. DOI: 10.3784/jbjc.202205160219
Luo Fei, Wang Jing, He Weitao, Zhang Chao, Bi Fuyin, Zeng Jun, Lin Mei. Epidemiological characteristics of influenza-like illness outbreaks in Guangxi, 2018−2022[J]. Disease Surveillance, 2022, 37(11): 1453-1457. DOI: 10.3784/jbjc.202205160219
Citation: Luo Fei, Wang Jing, He Weitao, Zhang Chao, Bi Fuyin, Zeng Jun, Lin Mei. Epidemiological characteristics of influenza-like illness outbreaks in Guangxi, 2018−2022[J]. Disease Surveillance, 2022, 37(11): 1453-1457. DOI: 10.3784/jbjc.202205160219

2018-2022年广西壮族自治区流感样病例暴发疫情流行特征

Epidemiological characteristics of influenza-like illness outbreaks in Guangxi, 2018−2022

  • 摘要:
      目的  了解2018—2022年广西壮族自治区(广西)流感样病例暴发疫情流行动态及影响因素,为今后流感防控提供依据。
      方法  通过收集2018—2022年“中国流感监测信息系统”和“突发公共卫生事件报告管理信息系统”报告的广西流感样病例暴发疫情监测资料,以及相应的病原学检测结果,描述流感暴发疫情的流行特征。
      结果  2018—2022年广西共报告流感样病例暴发疫情474起,累计报告发病数40 996例。 每年11和12月出现疫情报告高峰,呈现明显的季节性特征;场所分布主要以县(市)中小学校为主,占暴发疫情总数的90.51%(429/474);病例年龄以5~14岁居多,占报告总发病数的84.55%(34 663/40 996)。 2018—2022年各型流感病毒均有检出,每年有2种以上的病原流行,暴发流行的优势毒株总体呈现以甲型流感病毒H1N1型、甲型H3N2型和乙型流感病毒BV型交替流行的趋势。
      结论  广西流感样病例暴发常发生在中小学校,具有明显的季节性,流感优势株变换频繁,应通过持续监测及时掌握流感病毒的活动情况,做好常态化防控。

     

    Abstract:
      Objective  To understand the epidemiological characteristics and influencing factors of influenza-like illness (ILI) outbreaks in Guangxi Zhuang autonomous region from 2018 to 2022, and provide evidence for the prevention and control of influenza.
      Methods  The ILI outbreaks data and etiological detection results in Guangxi from 2018 to 2022 were collected from “China Influenza Surveillance Information System” and “Public Health Emergency Reporting and Management Information System”. A descriptive analysis method was used to analyze the influenza data.
      Results  From 2018 to 2022, a total of 474 ILI outbreaks were reported in Guangxi, involving 40 996 cases. The annual outbreak showed obvious seasonality with peak between November and December; ILI outbreaks mainly occurred in primary and secondary schools, accounting for 90.51% (429/474). Most cases were aged 5−14 years, accounting for 84.55% (34 663/40 996) of the total reported cases. From 2018 to 2022, all types of influenza viruses were detected, and more than two types of influenza viruses spread every year. The predominant strains causing the outbreaks showed an alternating trend of influenza A (H1N1), A (H3N2) viruses and influenza B virus Victoria linage.
      Conclusion  ILI outbreaks mainly occurred in primary and secondary schools in Guangxi, and had obvious seasonality. The predominant strains of influenza viruses altered frequently, and continuous surveillance should be carried out to understand the activities of influenza viruses in time.

     

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