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Article in Chinese | WPRIM | ID: wpr-415270


Objective To analyze the control strategy of malsria in Sihong County for the recent 10 years and to evaluate its control effect.Methods The individual questionnaires of cases,the historical data of malaria control and the endemic situation of malaria in Sihong County from 1997 to.2007 were collected and analyzed.Results Two malaria Cases were reported in 2 towns of Sihong County in 1997,and the endemic situation rebounded in 1998 with 21 cases distributed in 12 towns.In 1999,the number of cases who distributed in 16 towns increased to 65.Endemic outbreaks occurred in some districts in 2000 and 2001 when the case number increased to 477 and 488,respectively,and the incidence increased to 4.77 and 7.78 per 10 000 people,respectively.After the comprehensive mesgures with an emphasis on infection source management and vector control were implemented,the incidence decreased to 0.99 per 10 000 people in 2007 and the endemic situation became stable.Conclusions Though the measures of malaria control in Sihong County are effective,surveillance should be strengthened to prevent the endemic situation from rebounding.

Article in Chinese | WPRIM | ID: wpr-561604


Objective To understand the current status of malaria prevalence,its impacts and malaria transmission trends in Jiangsu Province.MethodsThe malaria incidence,and its symptoms,mosquito preventive measures,Anopheles density,mosquito biting rates and related factors were investigated in malaria epidemic villages as surveillance sites such as Guanshan Town of Suining County,Tangzhang Town of Tongshan County,Tianganghu town of Sihong County,Qiuji Town of Xuyi County and Zhangzhu Twon of Yixing City.ResultsIn 2006,the bednet coverage was 20.29% and bednet-using rate was 34.32% in 27903 residents of 7921 households of 15 administrative villages.In 2005,750 Anopheles sinensi were captured from 50 bednets in the early morning,the human biting ratio was 0.17/person per night,and in 2006,1927 Anopheles sinensi were captured from 50 bednets in the early morning,human biting ratio was 0.38/person per night.The average blood smear checking rate was 2.72%(6089 people)and the average positive rate was 0.48%(29 plasmodium positive individuals).ConclusionThe lower blood smear microscopy testing,few positive rates of febrile patients and increased Anopheles sinensis density were the main factors of malaria relapses in the area of the North Huaihe River in Jiangsu Province.