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采用土层内筛检所捡获的钉螺数量及活螺检出率均高于土表查螺,可弥补土表查螺的不足。土层内筛检钉螺更适于考核药物灭螺效果。
The number of snail seized and the detection rate of live snails were all higher than that of the snail on the soil surface, which could make up for the shortage of snail on the soil surface. Soil snail screening more suitable for the assessment of drug snail effect.