Methods Surveying epidemiologically the area with the indirect fluorescent antibody test(IFAT)and checking the parasite rate again in 1999.

方法于1999年再次应用IFAT进行流行病学监测及原虫率考核。

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When eggs placed out of the wood block, egg stage is 13 ~ 15days, average hatching rate and average parasite rate are increased, they are 83.3% and 87.5% respectively.

卵放在木段外，卵期缩短为13 ~ 15天，平均孵化率及初孵幼虫对光肩星天牛幼虫的平均寄生率均有所提高，分别为83.3%和87.5%。

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The "reaching criteria rate" of the parasite ova sediment and the value of the fecal coliform bacteria were 100% among the excrement in the outlet.

出口粪液寄生虫卵沉降率、粪大肠菌群值两项同时达标率为100%。

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It also looks at the relationship between parasite density in people and the rate at which humans transfer those parasites back to the mosquitoes that carry them.

ECONOMIST: Linking up computers to defeat malaria