Exponentially Cheaper Vaccine Saves Thousands

Regarding Meningitis A. From the article...

"MenAfriVac is much cheaper than existing meningitis A vaccines, at 50¢ compared with $120 per dose. It is also more potent. Unlike conventional vaccines, which are based on sugars resembling those on the surface of Neisseria meningitides, a bacterium that causes meningitis, the new vaccine splices the sugars to a carrier protein that is better at stirring up the body's immune system. "It makes the immune response much more vigorous," says Marc LaForce, director of the global Meningitis Vaccine Project, which developed MenAfriVac."

http://www.newscientist.com/article/dn20568-cheap-vaccine-eradicates-new-cases-of-meningitis-a.html