The snail habitat area, mean density of living snails and prevalence of schistosomiasis in human and cattle were compared with those of the control villages.
观察钉螺孳生面积、活螺平均密度及人畜感染率变化情况，并与对照组（龙湾镇竺场村）比较。
The snail habitat area, mean density of living snails and prevalence of schistosomiasis in human and cattle were compared with those of the control villages.
观察钉螺孳生面积、活螺平均密度及人畜感染率变化情况，并与对照组（龙湾镇竺场村）比较。
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