2016-2020年南昌市疟疾流行病学特征分析

Epidemiological characteristics of malaria in Nanchang City from 2016 to 2020

目的了解南昌市疟疾的流行特征,为及时调整南昌市消除疟疾后的防治策略和措施提供依据。方法采用回顾性分析,自"中国疾病预防控制信息系统传染病报告信息管理系统"和"寄生虫病防治信息专报系统"收集2016-2020年南昌市报告的疟疾病例信息及流行病学个案调查表,对疟疾病例的一般情况、三间分布(时间、地区、人群分布)和感染来源进行描述和统计分析。结果2016-2020年南昌市共报告疟疾病例69例,其中恶性疟39例、间日疟19例、卵形疟9例、三日疟1例、混合感染1例。69例疟疾病例的发病时间无明显季节性,各月均有病例报告;分布于南昌市的8个区(县),以进贤县最多,占36.2%(25/69);病例男女性别比为22∶1(66∶3),发病年龄主要集中在20~<60岁,占97.1%(67/69);职业分布以工人为主,占26.1%(18/69)。69例疟疾病例均为境外输入性病例,其中从非洲输入67例,占97.1%。结论2016-2020年南昌市无本地疟疾病例报告,均为境外输入性病例,今后应加强境外输入人员的管控与防治工作。

Objective To understand the epidemic characteristics of malaria in Nanchang,and provide a basis for timely adjustment of prevention and control strategies and measures after elimination of malaria in Nanchang.Methods By retrospective analysis,the malaria case information and epidemiological case questionnaire reported in Nanchang from 2016 to 2020 were collected from the"China Disease Control and Prevention Information System Infectious Disease Report Information Management System"and"Parasitic DiseasePrevention and Control Information Special Report System".General situation of the cases,three distributions(time,region and population distributions)and the source of infection were described and statistically analyzed.Results A total of 69 malaria cases were reported in Nanchang from 2016 to 2020,including 39 cases of falciparum malaria,19 cases of vivax malaria,9 cases of ovale malaria,1 case of quartan malaria and 1 case of mixed infection.The onset time of 69 malaria cases was not seasonal,and cases were reported every month;they were distributed in 8 districts(counties)of Nanchang,with Jinxian County was most,accounting for 36.2%(25/69);the sex ratio of men and women was 22∶1(66∶3),and the age of the cases was mainly 20-<60 years old,accounting for 97.1%(67 cases);the occupation distribution was dominated by workers,accounting for 26.1%(18/69).The 69 malaria cases were all imported cases from abroad,of which 67 cases were imported from Africa,accounting for 97.1%.Conclusions There is no report of local malaria case in Nanchang from 2016 to 2020,all cases are imported from abroad.In the future,the control and prevention of imported personnel from abroad should be strengthened.