This news item from the Cornell Chronicle is about: Will a fresh glass of raw milk nourish or poison you? Pasteurization almost always provides protection from contamination. Unpasteurized raw milk, on the other hand, provides a potential breeding ground for disease-causing bacteria such as E. coli, Listeria, Campylobacter and Salmonella, all of which have caused outbreaks spread by raw milk in the past year, said Ynte Schukken, professor of epidemiology and herd health at Cornell's College of Veterinary Medicine.