Analysis on the epidemiological characteristics and effect about emergency handling of dengue fever in Jiangnan district of Nanning, 2019

Objective Summary and analysis the epidemiological characteristics and the emergency handling of Dengue Fever disposal in Jiangnan district of Nanningcity in 2019, we provide scientific evidence for effective prevention and control measures in future. Methods Epidemiologic method was used to analyze the occurrence of dengue fever in Jiangnan district in 2019, and we evaluate the results on Dengue Fever disposal. Results The situation of dengue fever of Jiangnan district in 2019 was severe.There were 370 cases of dengue fever reported,including 4 imported cases and 366 local cases. Dengue Fever infection was mainly in unemployment in the home and retired; the male to female ratio of the cases was 1∶1.12, the age of the cases ranged from 1year to 92 years. The spatial distribution of the onset was highly clustered, Fujian Yuan street accounted for 87.70% of the local cases in the city. The qualification rate of Breteau index (BI) and bed net trap index in early emergency monitoring of Aedes mosquitoes was low, were 72.17% and 62.61% respectively. According to the characteristics of the epidemic, specific prevention and control strategies should be formulated to deal with the epidemic in a precise manner, effectively reduce the peak value and quickly control the spread of the epidemic. Conclusion The dengue epidemic was caused by imported cases, which led to an outbreak at the community level. The epidemic showed a trend of multiple outbreaks and spread. We need to do a good job in investigating the epidemic, early warning and prediction, accurate identification of epidemiological characteristics and early implementation of dengue emergency response. Accurate prevention and control, breeding site treatment, health education and case management are the key measures for emergency response. 摘要：目的 分析总结南宁市江南区 2019 年登革热流行病学特征和疫情应急处置的工作情况, 为今后有效地防制 登革热提供对策、参考和技术支持。 方法 收集南宁市江南区 2019 年登革热疫情相关数据, 评价本次应急处置的工作 成效。 结果 2019 年南宁市江南区登革热疫情严峻, 共报告登革热病例 370 例, 其中输入病例 4 例, 本地病例 366 例; 感 染人数以家务待业和离退休者居多; 男女性别比为 1∶1.12; 发病年龄最小 1 岁, 最大 92 岁; 发病的空间分布呈现高度聚 集, 福建园街道占本城区本地病例的 87.70%。早期伊蚊应急监测布雷图指数和账诱指数合格率偏低, 分别为 72.17% 和 62.61%。针对本次疫情特性, 制定有针对性的防控策略, 做好精准疫情应急处置, 有效压低峰值, 迅速控制了疫情的 扩散和蔓延。 结论 本次疫情是由输入性病例导致本地病例社区水平暴发, 疫情呈现多点暴发及扩散蔓延态势。需 做好疫情研判、预警预测, 准确分析流行病学特征, 尽早实施登革热应急处置, 精准防控、孳生地处理、健康宣教和病例 管理是应急处置的关键措施。