Objective To investigate the epidemiological characteristics of person, time, and place of dengue fever and their domestic and abroad sources in Guangxi Zhuang Autonomous Region (Guangxi), China from 2016 to 2020, and to provide a scientific basis for the prevention and control of dengue fever in the future. Methods The data on dengue fever in Guangxi from 2016 to 2020 were collected from the notifiable disease reporting system. With Excel 2010 and SPSS 20.0, descriptive epidemiological methods were used to analyze the epidemiological characteristics of imported and local cases of dengue fever in Guangxi in the past five years, and to analyze the source of infection and the epidemic pattern of dengue fever in Guangxi. Results A total of 2 183 dengue cases were reported in Guangxi from 2016 to 2020, with an average incidence of 0.89/100 000. Dengue fever was sporadic during 2016 to 2018, and occurred in outbreaks in 2019 and 2020. The incidence of dengue fever peaked in 2019, accounting for 80.20% of the total reported cases. The male-to-female ratio of imported cases was statistically higher than that of local cases (χ2=5.262, P=0.022).The majority of local cases were between 30 and 39 years old (22.61%) and the majority of imported cases were between 30 and 39 years old (27.94%). The local and imported cases showed similar trends in epidemic seasons, mainly in summer and autumn. The imported cases were mainly from Guangdong province in China (74 cases, 88.10%) and from Cambodia (83 cases, 65.35%). In terms of occupational distribution, domestic and overseas imported cases were mainly household workers and unemployed workers, accounting for 20.78% and 20.47% respectively, while domestic imported cases were mainly farmers (43.03%). Conclusion Dengue fever in Guangxi has an increased trend from sporadic patterns to outbreaks. It is important to strengthen the education on dengue control for key populations during epidemic seasons, to enhance the sensitivity of quarantine at entry and exit ports and the level of diagnosis in medical institutions, and to promptly identify and report cases, which are important for reducing the occurrence and spread of dengue fever.
Jing WANG, Fei LUO, Wei-tao HE, Li-na JIANG, Chao ZHANG, Mei LIN, Jun ZENG
. Epidemiological characteristics of dengue fever in Guangxi Zhuang Autonomous Region, China, 2016-2020[J]. Chinese Journal of Vector Biology and Control, 2023
, 34(1)
: 65
-69
.
DOI: 10.11853/j.issn.1003.8280.2023.01.012
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