How a Childhood Vaccine Reduces Risk of a Cancer - NYTimes.com
▻http://well.blogs.nytimes.com/2015/05/20/scientists-unravel-how-a-vaccine-reduces-risk-of-a-cancer
Young children are routinely vaccinated against Haemophilus influenza type B, or HiB, a bacterium that can cause meningitis and other serious problems. But the HiB vaccine has an added benefit: It reduces the risk for acute lymphoblastic leukemia, or ALL, the most common childhood cancer, and now scientists know why.