An experimental malaria vaccine helps protect children for as long as 18 months against the deadly parasite, researchers report. The company that makes the vaccine, GlaxoSmithKline, says it will move ahead to develop the vaccine commercially.
It's not a home run by any stretch. The vaccine, called RTS,S, cut the number of cases in half after 18 months. Most childhood vaccines provide at least 90 percent protection. And it only reduced the number of cases in infants by a quarter.Read more.