Epidemic characteristics and control strategies of natural focus and insect-borne infectious diseases in Yichang City,2013-2022
Objective To analyze the epidemiological features of natural focus and insect-borne infectious diseases in Yichang City,Hubei Province from 2013 to 2022,and to provide a basis for developing prevention and control strategies.Methods The surveillance data about natural focus and insect-borne infectious diseases in Yichang City during 2013-2022 were collected,and the epidemiological features were analyzed.Results A total of 318 cases regarding 9 kinds of natural focus and insect-borne infectious diseases were reported in Yichang City during 2013-2022,with an average annual reported incidence rate of 0.78/100,000.There were 49 death cases reported,with an average annual reported mortality rate of 0.12/100,000.The main diseases with a large number of reported cases were malaria,epidemic hemorrhagic fever(EHF),rabies,brucellosis and dengue fever,among which the imported cases were due to malaria and dengue fever.The incidence peaked in January and May-July,and the cases were reported in all 14 counties(cities and districts).The area reporting the largest number of malaria cases was Xiling District,while the area reporting the largest number of EHF cases was Dangyang City.The incidence rate was higher in males than in females(x2=153.291,P＜0.001).Most of the cases were in the group aged 35-55 years,and the occupation was mainly farmers,accounting for 38.36％.Conclusion The trend in the incidence of natural focus and insect-borne infectious diseases in Yichang City is generally stable,and most of the cases are imported malaria and local EHF.Prevention and control strategies include enhancing case and vector surveillance,early detection,early reporting and early disposal,strengthening the publicity about disease prevention knowledge among migrant workers and tourists,conducting targeted patriotic health campaigns,and intensifying the cleaning of insect breeding sites.
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