南通市1例输入性登革热病例的调查处置
Investigation and management of an imported dengue fever case in Nantong City
袁建明 1魏叶 1宋冰洁 2孙斌1
作者信息
- 1. 南通市疾病预防控制中心,江苏 南通 226007
- 2. 启东市疾病预防控制中心,江苏 启东 226200
- 折叠
摘要
目的 调查南通市1例输入性登革热病例的流行病学特点,对媒介伊蚊应急监测和处置,评价疫情处置效果.方法 对病例开展流行病学调查;对病例、共同暴露者和密切接触者的血清采用实时荧光定量PCR法进行登革病毒核酸检测;在社区和医疗机构开展病例搜索;采用布雷图指数(BI)法和双层叠帐法开展媒介伊蚊密度应急监测.结果 确诊1例来自加纳的输入性登革热病例,疫点核心区、警戒区的媒介伊蚊成蚊帐诱指数为0只/(顶·h),BI值均小于5.结论 确诊患者得到及时隔离救治,媒介伊蚊密度小于登革热传播阈值,疫情得到有效控制,未发生本地传播.
Abstract
Objective To investigate the epidemiological characteristics of an imported dengue fever case in Nantong City,carry out emergency monitoring and disposal of vector Aedes,and evaluate the response outcome of the epidemic situation.Methods The epidemiological investigation was performed for the case.Quantitative real-time PCR was used to detected the dengue virus nucleic acid of the serum samples of the case,co-exposed persons and close contacts.A search for dengue fever cases was conducted in communities and hospitals.The density of vector Aedes was monitored by Breteau index(BI)and double bed net trap.Results A case of dengue fever imported from Ghana was confirmed.The BI and bed net trap index in the core area and warning area of the epidemic spot were less than 5 and 0 mosquito per net per hour,respectively.Conclusion The patient was promptly isolated and treated.The density of vector Aedes were below the safety thresholds.The epidemic had been controlled effectively and no local transmission occurred.
关键词
登革热/输入性病例/流行病学/应急监测/媒介伊蚊Key words
dengue fever/imported case/epidemiology/emergency surveillance/vector Aedes引用本文复制引用
基金项目
南通市"十四五"科教强卫工程项目(通卫科教[2021]15号)
2019年度南通市市级科技计划(指导性)项目(JCZ19003)
出版年
2024
NETL
NSTL
万方数据