2018年和2024年江门市江海区登革热疫情流行特征比较分析

Objective To compare and analyze the epidemiological characteristics of dengue fever epidemic in Jianghai District, Jiangmen City in 2018 and 2024, and to provide a reference for formulating dengue fever prevention and control measures in Jianghai District in Jiangmen City in the future. Methods The dengue fever case data reported by China Information System for Disease Control and Prevention in Jianghai District of Jiangmen City in 2018 and 2024 were collected, combined with the mosquito vector surveillance data of the Guangdong Provincial Vector Biological Surveillance System, and the descriptive epidemiological methods were used for comparative analysis. Results The annual incidence of dengue fever in Jianghai District of Jiangmen City in 2018(39.94/100,000) was higher than that in 2024(26.78/100,000)(P<0.05). The first case of the epidemic in both years appeared in August, with a peak period from August to November and a peak in October. In 2018 and 2024, local dengue fever cases were reported in three streets in the region. In 2018 and 2024, local cases were mainly concentrated in the outer sea streets. There was no difference in the gender composition of the epidemic in the two years. The age structure shifted from children to the elderly, and the occupational composition was the highest in housework and unemployed people. The mosquito infection index in 2018 was higher than that in 2024(P<0.05). Conclusion The local dengue fever epidemic in Jianghai District in 2018 is higher than that in 2024, and the outbreak period of the two years is highly consistent and seasonal, and there are differences in age, population and regional distribution.