Abstract: Objective To analyze the epidemiological characteristics of dengue fever and the surveillance data of Aedes vector in Hubei province, China, 2019, and to provide a basis for formulating effective prevention and control strategies for dengue fever. Methods The Breteau index method and double-net method were used to monitor the density of Aedes larvae and adults. Excel 2016 software was used to process and tabulate the data of dengue cases and mosquito vector surveillance. Results A total of 233 dengue cases were reported, including 30 cases of indigenous infections. Apart from Shennongjia forest region, all the other 16 cities (prefectures) had reported cases. There were reported cases all year round, with a peak period in June to November. Among all the reported cases, 87.12% (203 cases) were imported, and 81.36% (144 cases) of the imported cases were from Cambodia. The age of patients was mainly 20-54 years (193/233, 82.83%); farmers were the dominant occupation (73/233, 31.33%), followed by unemployed people (41/233, 17.60%). The ratio of males to females was 3.02:1. On average, they visited the hospital 6 days after onset. The peak density of Ae. albopictus occurred in June to October. Conclusion The dengue epidemic in Hubei province, 2019 was a local outbreak caused by imported cases. It is suggested that relevant departments should strengthen surveillance of the Aedes vector and dengue cases, so as to provide a scientific basis for the selection of local dengue prevention and control measures.

Key words: Dengue fever, Imported cases, Vector investigation, Hubei province

摘要： 目的 分析2019年湖北省登革热疫情特征及媒介伊蚊监测数据，为制定有效的登革热防控措施提供依据。方法 采用布雷图指数法和双层叠帐法监测媒介伊蚊幼蚊和成蚊密度，采用Excel 2016软件处理登革热病例和蚊媒监测数据并绘制图表。结果 共报告登革热病例233例，其中本地感染病例30例；除神农架林区外，其余16个市（州）均有登革热病例报告；全年均有病例报告，病例高峰为6－11月，87.12%为输入性病例（203例），且81.36%的境外输入病例来自柬埔寨（144例）；患者年龄主要集中在20～54岁（193/233，82.83%），职业以农民为主（73/233，31.33%），其次为家务及待业（41/233，17.60%），男女性别比例为3.02：1，患者发病后平均就诊时间为6 d。白纹伊蚊密度高峰期在6－10月。结论 2019年湖北省登革热疫情主要是由输入病例引起的本地暴发疫情，建议相关部门进一步做好媒介伊蚊和病例监测工作，为当地登革热防控措施选择提供科学依据。

关键词: 登革热, 输入性病例, 媒介调查, 湖北省