A few of the recent pieces I’ve liked:
Maryn McKenna at Superbug: What vaccine refusal really costs: Measles in Arizona
Body Horrors: Blood Money: Hookworm Economics in the Postbellum South
Tara C. Smith at Aetiology: Staph in food — what does it mean?
David Rosenfeld at DC Bureau: California turns to Mexico for Cheap Water, Little Regulation