Characteristics of imported malaria cases in China from 2012 to 2021
Objective To analyze the characteristics of imported malaria cases in China from 2012 to 2021 in order to understand the epidemic situation of imported malariaand formulate better prevention and control measures.Methods Data of imported malaria cases in the past 10 years were collected based on the national online reporting system and related literature data from 2012 to 2021.The number of cases,species composition,regional distribution and death cases were analyzed,and the case fatality rate was compared between regions using x2 test.Results From 2012 to 2021,the majority of imported cases were imported from Africa,followed by Asia.A total of 26 314 imported malaria cases(98.81％)were reported in China;of which,64.02％were falciparum malaria cases,23.26％were vivax malaria cases,8.98％were ovoid malaria cases,2.28％were malarial malaria cases and 1.52％were mixed infections.Due to the impact of thenovel coronavirus epidemic,the number of imported malaria cases from 2017 to 2021 decreased by 37.37％compared with that from 2012 to 2016.Africa(8 731 cases,accounting for 86.57％)and Asia(1 255 cases,accounting for 12.44％)were still the main sources of imported cases.From 2012 to 2019,Yunnan(3 707 cases),Guangxi(3 018 cases),Jiangsu(2 333 cases),Sichuan(1 905 cases)and Zhejiang(1 543 cases)ranked the top five provinces in terms of the number of reported cases,accounting for 51.56％of the total.The five provinces with the highest number of deaths were Sichuan(13 cases),Henan(13 cases),Guangdong(13 cases),Beijing(12 cases)and Shandong(10 cases),accounting for 43.57％of the reported deaths nationwide.Conclusions The imported malaria epidemic was more prominent.It should be necessary to strengthen surveillance and management,improve the diagnosis and treatment level of imported malaria cases,and reduce the incidence of deaths.
NETL
NSTL
万方数据
