[Cory]

Originally Posted by Andrew Blair

I too agree that a water purifier could be the thing, but mosquito nets do the same things Dave described. Less than 2 dollars, widely available, anyone can use them, and they protect people from some of the most prolific killers. Probably more deaths from malaria, yellow fever, or similar diseases, than from water based pathogens. I think a typical mosquito net is a few dollars, and with pestiside which makes them all the more effective, like 6 bucks. Very effective, very simple.

Mosquito nets aren't exactly revolutionary though