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目的观察嗜人按蚊、中华按蚊嗜血习性和传疟作用 ,为探索经济有效的疟防措施提供科学依据。方法以血检阳性病人计算发病率。人工诱饵法观察通宵叮人率。半通宵叮人率与晨间蚊帐按蚊密度之和计算睡前睡后叮人率 ,捕获新吸血按蚊 ,制成滤纸血膜送上海寄研所测定嗜血习性 ,解剖卵巢观察经产蚊比率。结果 1 .嗜人按蚊通宵叮人率平均为 3只 /人·夜 ,中华按蚊为 3 3只 /人·夜 ;睡前睡后叮人率平均分别为 2 .2 8只 /人·夜 ,4.43只 /人·夜 ,与 1 982调查比较 ,下降显著。2 .嗜人按蚊分布区 95 .0 9%的疟疾病人由嗜人按蚊传播 ,4.91 %由中华按蚊传播 ,嗜人按蚊传疟作用相当于中华按蚊的 2 0倍。 3 .嗜人按蚊媒介能量为 0 .0 75 2 ,中华按蚊为0 .0 0 60 ,基本繁殖率 <1 ;临界叮人率大于实际值。结论灭蚊、防蚊和及时治疗病人是防治疟疾的两大关键措施
Objective To observe the Anopheles anthropophagus, Anopheles sinensis’ s bloodthirsty habits and the role of malaria transmission in order to provide a scientific basis for exploring cost - effective malaria prevention measures. Methods To calculate the incidence of blood test positive patients. Artificial bait method observed overnight bite rate. Half-night bite rate and morning mosquito net anopheline density and calculate the rate of bedtime sleep bite, capture the new blood Anopheles, made of filter paper blood film sent to Shanghai Institute of determination of bloodthirsty habits, anatomical ovary observation produced mosquito ratio. Anopheles mosquito overnight bite rate average of 3 / person night, An. Sinensis was 33 / person / night; bedtime bite rate after bedtime averaged respectively 2.28 / person · Night, 4.43 / person / night, down significantly from the 1 982 survey. 2. Anopheles Anopheles Distribution 95. 0% of malaria patients transmitted by Anopheles anthropophagus, 4.91% transmitted by Anopheles sinensis, anopheles sinensis malaria transmission equivalent to 30 times the Chinese Anopheles. The energy of anopheles anthropophagus was 0.075 2, Anopheles sinensis was 0.060, the basic reproduction rate was less than 1, and the rate of critical bite was higher than the actual value. Conclusion Mosquito control, mosquito control and timely treatment of patients are the two key measures to prevent and control malaria