Summarize the four functional categories of water-related diseases. Using a rural area lacking access to water and sanitation coverage as an example, brainstorm some potential solutions that could address all four functional categories of water-related diseases. The Millennium Development Goal (MDG) target for water supply was achieved, but the target for sanitation has still not been met. Why do you think the increase in access to improved sanitation facilities has lagged behind the increase in access to improved water sources? Solve