This compensates with a lack of piped water in the settlements and helps with the next step, a crucial step treating the waste.

这弥补了聚落缺乏自来水的情况，也有助于下一个步骤，一个关键步骤--处理废物。

This depends on two steps: treating those already infected and preventing transmission to those who are not.

这取决于两个步骤：治疗已感染者并防止传播给未感染者。