Zhao Z, Li Y, Mou D, Yin W W, Hu J, Xiao S, Zhang J, Chen Q L, Zhang Z J, Li Z J
Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.
Key Laboratory of Surveillance and Early-warning on Infectious Disease, Division of Infectious Disease Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2020 Nov 10;41(11):1808-1812. doi: 10.3760/cma.j.cn112338-20191231-00923.
To explore the spatio-temporal patterns and epidemic characteristics of imported dengue fever cases in six provinces (Yunnan, Guangxi, Guangdong, Hainan, Fujian and Zhejiang) of China from 2016 to 2018. In this study, we collected the surveillance data of imported dengue fever cases from 2016 to 2018 in six southern provinces of China. The risk intensity, spatio-temporal distribution and epidemiological characteristics of imported dengue fever cases in the six provinces were analyzed from the perspective of space, time and population. Among the imported cases of dengue fever in China from other countries in the world, most of them were from Southeast Asia. In Zhejiang, Fujian and Guangdong provinces, there were greater number of imported cases with wide range of sources. While in Yunnan, Guangxi and Hainan provinces, the imported cases were almost from Southeast Asia. The incidence of imported dengue fever increased during the past three years, and the annual incidence peak was during August-November, but slight differences were observed among provinces. The age of the imported cases in Hainan[(37.0±19.6) years] was higher than that in southeastern coastal provinces[(36.0±11.7) years] and in southwestern provinces[(32.0±16.3) years]. The male-female ratio of the cases in southeastern coastal provinces (2.18∶1) were higher than those in southwestern provinces (1.04∶1) and Hainan (1.38∶1). The occupations of the cases were mainly workers and unemployed people in southeastern coastal provinces and farmers in southwestern provinces, but commercial personnel was the population with high incidence in both southeastern and southwestern provinces. Less imported dengue fever cases were reported in Hainan, the population distribution varied. There were differences in incidence pattern of imported dengue fever between southeastern coastal provinces and southwestern provinces as well as Hainan in China. Different prevention and control measures should be carried out in different areas to implement more precise prevention strategies.
探索2016年至2018年中国六个省份（云南、广西、广东、海南、福建和浙江）输入性登革热病例的时空模式和流行特征。在本研究中，我们收集了中国南方六个省份2016年至2018年输入性登革热病例的监测数据。从空间、时间和人群的角度分析了六个省份输入性登革热病例的风险强度、时空分布和流行病学特征。在全球其他国家输入中国的登革热病例中，大多数来自东南亚。在浙江、福建和广东省，输入病例数量较多，来源广泛。而在云南、广西和海南省，输入病例几乎都来自东南亚。过去三年输入性登革热发病率呈上升趋势，年发病高峰在8月至11月，但各省之间存在细微差异。海南省输入病例的年龄[（37.0±19.6）岁]高于东南沿海省份[（36.0±11.7）岁]和西南省份[（32.0±16.3）岁]。东南沿海省份病例的男女比例（2.18∶1）高于西南省份（1.04∶1）和海南（1.38∶1）。东南沿海省份病例的职业主要为工人和无业人员，西南省份主要为农民，但商业人员在东南和西南省份都是高发人群。海南省报告的输入性登革热病例较少，人群分布有所不同。中国东南沿海省份与西南省份以及海南省在输入性登革热发病模式上存在差异。不同地区应采取不同的防控措施，实施更精准的防控策略。
