Epidemiological analysis of imported malaria in Hanzhong City from 2013 to 2021
Objective To analyze the epidemiological characteristics and diagnostic status of malaria in 11 districts and counties of Hanzhong City,so as to provide scientific basis for improving the ability of prevention and control.Methods The data of malaria epidemic situation and malaria case investigation in Hanzhong City from 2013 to 2021 were collected,and the epidemic characteristics of malaria were analyzed by the epidemiological methods.Results From 2013 to 2021,totally 22 737 person-time of blood tests were carried out in Hanzhong City,and the total positive rate of malaria cases was stable at a low level.The difference in the proportion of malaria cases to the total population was statistically significant among different years(P＜0.05).There were 38 malaria cases,and all of them were imported.Among 38 malaria cases,89.5％(34/38)were imported from abroad,and the remaining 4 cases were infected in Yunnan area of China.The overseas import regions were mainly Africa,accounting for 78.9％(30/38).The majority of malaria types were falciparum malaria and vivax malaria,accounting for 63.2％(24/38)and 26.3％(10/38)respectively,ovale malaria accounted for 7.9％(3/38),and three-day malaria accounted for 2.6％(1/38).The onset of malaria cases was concentrated in February,May and November.The region analysis of 38 malaria cases showed that the number of malaria cases in the plain area was more than that in the mountain area.All of malaria infection cases were male,and the age was concentrated in young adults.The difference in the time from initial diagnosis to diagnosis of malaria cases was statistically significant among different years(P＜0.05).The total correct rate of laboratory initial diagnosis was 89.5％(34/38).Conclusions All malaria cases in Hanzhong City are imported cases.The malaria detection capacity of district and county medical and health institutions has been gradually improved.It is suggested that multi-sector cooperation should strengthen personnel classification management,further improve the ability of malaria diagnosis in medical and health institutions in the area,and provide reliable guarantee for preventing the spread of malaria.
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万方数据
