Rachel Carrell (New Zealand & Balliol 2002) writes an article in the Guardian about online communities and public health

"Local authorities will inherit plenty of challenges when they take responsibility for public health in April, but they have a stellar track record of innovation in this arena.

In the 19th century, for instance, local councils' Victorian counterparts managed to halve infant mortality through improving water and housing, and by eradicating the foul, infectious sludge-loos known as "privy middens"." Read more at the Guardian.