<http://schema.org/description>
"Recent policies calling for vaccinating preschool-aged children against the flu led to a 34 percent decline in influenza cases in this age group, according to researchers at Children's Hospital Boston and McGill University. The findings, which revealed smaller declines in other age groups as well, arose from a study that used real time surveillance data from pediatric emergency departments (EDs) in the United States and Canada to evaluate the relationship between national flu vaccination policies and rates of flu-like illness."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2011-09-natural-documents-population-benefit-vaccinating.html>