【摘要】 日本血吸虫病易感地带阻断耕牛传染源后，感染性钉螺各项指标呈非常显著下降。但如放弃人群涨水期间对洲滩的污染控制，州滩感染性钉螺仍可达较高水平。本文提示易感州滩阻断传染源后，只需１年时间便可净化成安全草州。进一步证明耕牛在血吸虫病传播中占重要地位。更多还原

【Abstract】 The indexes of infected snails dropped obviously after the infection sources of cattles in high-transmission area were blocked. But when the residents’ working in marshland was not controlled, the infected snails were still at high level. This became safe after the infection sources in hightransmission area were blocked; It was also proved that farming cattles played an important role in the transmission of schistosomiasis.更多还原