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目的分析影响本地疟疾流行的相关因素和流行规律,为制定防治策略提供依据。方法收集南阳市及重点县市区疟疾疫情和媒介监测等相关资料进行统计分析。结果1995年桐柏县南部山区发生疟疾局部暴发流行并波及相邻的唐河县部分乡镇,至2000年疟疾又出现发病高峰,发病数达到3 688例,通过采取控制传播媒介和传染源管理并重的综合性防治策略,2005年,全市疟疾发病降之1995年以来最低点874例,自2001~2005年,连续5年均为散发。2006年疟疾疫情回升到1 083例,2007年全市疟疾发病继续回升,达到1 363例,比去年上升25.85%,出现23个灶状暴发点;邓州市的裴营乡寇营村出现疟疾流行,在全乡启动了IV级疟疾突发疫情应急预案。中华按蚊和嗜人按蚊密度也有增多的趋势。结论南阳市疟疾疫情回升的主要原因受疟疾流行周期性规律的影响,也与媒介密度增加和传染源管理工作有所放松等诸多因素有关。
Objective To analyze the related factors and epidemic laws that affect the prevalence of malaria in our country and provide the basis for making prevention and cure strategies. Methods The relevant data of malaria epidemic and media monitoring in Nanyang City and key counties and cities were collected for statistical analysis. Results In 1995, outbreaks of malaria were reported in the southern mountainous areas of Tongbai County and affected some towns and villages in the adjacent Tanghe County. By the year 2000, the incidence of malaria was at a peak again, with a total incidence of 3 688 cases. By controlling the transmission media and source of infection, In 2005, the city’s malaria incidence dropped to the lowest point since 1995, 874 cases, from 2001 to 2005, for five consecutive years are distributed. In 2006, the malaria epidemic rose to 1,083 cases. In 2007, the incidence of malaria in the city continued to rise, reaching 1 363 cases, an increase of 25.85% over the previous year. There were 23 focal outbreaks; malaria epidemic occurred in Kouying Village, Peiying Township, Dengzhou City , Launched in the township level IV malaria emergency outbreak emergency plan. Anopheles sinensis and Anopheles also have an increasing density. Conclusion The main reason for the rise of malaria in Nanyang City is affected by the periodicity of malaria epidemic, and also with the increase of media density and the relaxation of infection source management.