从而明确了区域性灭螺的范围。
Thus, The range of regional snail control is clear and definite.
以吡喹酮反复群体化疗，辅以灭螺的综合防治手段，在血吸虫病的防治上产生了显著的效果。
The comprehensive control measure based on the chemotherapy of praziquantel, combined with snail control in epidemic areas has made great achievements for the control of schistosomiasis.
在不进行灭螺的情况下，人牛化疗合并人的行为干预和牛接种疫苗，同样可获得很好的控制传播效果。
Satisfied control effect could also be obtained by chemotherapy in human and bovines combined with behaviour intervention for human and vaccination for bovines without snail control.
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