Routine vaccinations against the chicken pox have reduced the incidence of the itchy potentially serious virus by as much as 90 percent in the U.S. But the original one-shot protocol may not be as effective as the newer, two-dose regimen, new research suggests. [More] (Source: Scientific American - Official RSS Feed)
Original source: http://www.sciam.com/blog/60-second-science/post.cfm?id=chicken-pox-vaccine-dramatically-re-2008-09-03&sc=rss