摘要
目的通过对近期发生的输入性疟疾突发聚集性疫情进行解析,探讨疟疾消除后此类事件存在的风险、挑战和应对策略,为有效应对疫情风险和巩固消除疟疾成果提供参考。方法收集“传染病监测系统”和“寄生虫病防治信息系统”中2022年的疟疾个案信息,并对病例诊断分类、感染来源及时间和空间分布进行分析。结果2022年1月1日—8月11日,全国累计报告疟疾病例429例,较去年同期(529例)下降了18.9%,均为输入性病例;每周疫情趋势变化整体较平稳,但自31周(7月25日—7月31日)开始,疟疾病例数有较大幅度的上升,高峰出现在8月5日;其中2022年7月25日—8月11日,全国累计报告疟疾病例162例,较去年同期(39例)上升了315.4%,占2022年度截至8月11日24时报告病例总数的37.8%,其境外感染地主要为几内亚(95例,占58.6%),由几内亚输入的疟疾病例主要由广东深圳龙岗区(30例)、云南昆明石林县(21例)、北京朝阳区(11例)和浙江杭州萧山区(7例)报告。结论由于人员集中归国,我国多个入境口岸城市同时出现了输入性疟疾突发聚集性疫情,对疾控和医疗机构带来巨大压力和挑战,各级需保持高度的监测敏感性,做好充分应对准备,以免发生死亡病例和输入继发传播。
Objective To analyze the recent cluster outbreaks of imported malaria and explore the risks,challenges and countermeasures for dealing with such events during malaria post-elimination era of malaria,and to provide reference for effectively addressing the risks and consolidating the achievements of malaria elimination.Methods The individual malaria case data from"The Information System for Infectious Disease Surveillance"and"The Information System For Parasitic Diseases Prevention And Control"were collected,and the diagnosis classification,infection source,time and space distribution of cases were analyzed.Results From January 1 to August 11,2022,a total of 429 malaria cases were reported nationwide,an 18.9%decrease compared to the same period last year(529 cases),all of which were imported cases.The overall weekly trend of the outbreak remained stable,but since Week 31(July 25-31),there has been a significant increase in the number of cases,with a peak on August 5.From July 25 to August 11,2022,a total of 162 malaria cases were reported nationwide,up 315.4%from 39 cases in the same period last year,accounting for 37.8%of the total cases up to August 11,2022.The main source of imported infections was Guinea(95 cases,58.6%),with most cases reported in Longgang District,Shenzhen City,Guangdong Province(30 cases),Shilin County,Kunming City,Yunnan Province(21 cases),Chaoyang District,Beijing(11 cases),and Xiaoshan District,Hangzhou City,Zhejiang Province(7 cases).Conclusions Due to the concentration of returnees to China,several entry port cities simultaneously experienced cluster outbreaks of imported malaria,which brought immense pressure and challenges to local medical and health institutions.Health facilities at all levels need to maintain high vigilance and sensitivity,be well prepared,and avoid death and secondary transmission caused by imported cases.
作者
张丽
尹建海
夏志贵
ZHANG Li;YIN Jian-hai;XIA Zhi-gui(National Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,Chinese Center for Tropical Diseases Research,WHO Collaborating Centre for Tropical Diseases,National Center for International Research on Tropical Diseases,Ministry of Science and Technology,NHC Key Laboratory of Parasite and Vector Biology,Shanghai 200025,China)
出处
《中国热带医学》
CAS
2023年第6期585-589,共5页
China Tropical Medicine
基金
上海市第五轮公共卫生体系建设三年行动计划重点学科项目(No.GWV-10.1-XK13)。
关键词
输入性疟疾
突发聚集性疫情
风险
监测响应
消除后
中国
Imported malaria
cluster outbreak
risk
surveillance and response
post-elimination
China
