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。
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 seroepidemiology were carried out for a period of 10 years without conducting control measures. Resuits Microfdarremia rate was reduced from 0.31% in the first year of study to 0,01% in the 0th year. The national infection rate of mosquito vectors was reduced from 0.15 % in the first year of study to 0 in the 0th year, The antibody positive rate of population was reduced from 6,85 % in the 7th year of study to 1,56 % in the 0th year, Conclusion The transmission of Bancroftian fdariasis can be interrupted when the microfdaremia rate reduced between 0.17% - 1.15 % and the microfdaria density in residual microlaremias was between 1 - 50/12091 without conducting control measures after basic elimination of the disease.
出处
《中国热带医学》
CAS
2005年第8期1613-1616,共4页
China Tropical Medicine
