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编号:11326694
山东省班氏丝虫病防治后期传播潜势的研究
http://www.100md.com 《中国热带医学》 2006年第8期
班氏丝虫病;传播潜势;微丝蚴血症;淡色库蚊;蚊媒幼丝虫;抗体,,班氏丝虫病;传播潜势;微丝蚴血症;淡色库蚊;蚊媒幼丝虫;抗体,1材料与方法,2结果,3讨论
     摘要:目的 探讨山东省班氏丝虫病达到基本消灭后期其传播流行的潜势。 方法 在不采取防治措施的情况下,进行10年病原、蚊媒和血清学纵向研究。 结果 班氏丝虫病微丝蚴(mf)率由1980年基本消灭第1年的0.31%,降至第10年的0.01%;蚊媒自然感染率在第1年的0.15%,到第9~10年时均降至0;人群丝虫抗体阳性率由第7年6.85%下降至第10年的1.56%。 结论 在基本消灭丝虫病后,当监测点mf率在0.17%~1.15%,残存mf血症者mf密度为1~50条/120μl时,在不采取防治措施的情况下,班氏丝虫病传播趋于阻断。

    关键词:班氏丝虫病;传播潜势;微丝蚴血症;淡色库蚊;蚊媒幼丝虫;抗体

    Study on the transmission potential of Bancrofian filariasis at later stage of control in Shandong Province.

    WANG Pei-yi,Wang Li-lei,ZHAO Chang-lei,et al.

    (Shandong Provincial Institute of Parasitic Diseases,Jining272033,Shandong,P.R.China)

    Abstract:Objective To explore the transmission potential of Bancrofian filariasis at later stage of control and consolidate the control achievement for gaining the goal of elimination of filariasis in Shandong Province. Methods Longitudinal studies on the pathogen,mosquito vectors and seroepidemiologywere carried out for a period of10years without conducting control measures. Re-sults Microfilarremia rate was reduced from0.31%in the first year of study to0.01%in the0th year.The national infection rate of mosquito vectors was reduced from0.15%in the first year of study to0in the0th year.The antibody positive rate of population was reduced from6.85%in the7th year of study to1.56%in the0th year. Conclusion The transmission of Bancroftian filariasis can be interrupted when the microfilaremia rate reduced between0.17%~1.15%and the microfilaria density in residual micro-laremias was between1~50/120μl without conducting control measures after basic elimination of the disease. ......

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