There’s a good article on energy in the developing world − Power to the people – in the 4 September issue of The Economist. Quote: “Around 1.5 billion people, or more than a fifth of the world’s population, have no access to electricity, and a billion more have only an unreliable and intermittent supply.” Not too dissimilar to WatSan provision then.
The same issue has an article on emerging infections – No good deed goes unpunished. Smallpox is being replaced by monkeypox, at least in the DRC (see the original PNAS paper here). Similar to rotavirus and norovirus (see blog of 27 June 2009)?