But we also know that these tools are insufficient to defeat malaria in its heartland and eventually interrupttransmission.
但我们也懂得，要在疟疾的中心地带战胜它并最终阻断传播，这些工具还不够。
2
Experience has shown that long term-prevention of cholera depends on access to safe water and adequate sanitation to prevent exposure and interrupttransmission.
经验显示，长期预防霍乱取决于获得安全用水和适当的环境卫生设施，以防受到感染并阻断传播。
3
We need to interrupt endemic transmission of wild poliovirus in limited areas within just four countries and a few other areas that have been reinfected.