HEALTH IS HYGIENE:

The most advanced sanitation solutions for the developing world aren't always cheap--for proof, take a look at the self-contained, waste-treating toilet that won the Gates Foundation's Reinvent the Toilet Challenge. Anyone would be lucky to have it in their home or community, but it costs $1,500. In many places, that's just too much money.

Bathroom and kitchen fixture company American Standard has come up with a cheaper solution, also funded by the ever-present Gates Foundation: a $1.50 latrine pan that cuts down on sanitation-related disease transmission by sealing off pit toilets.

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