Malaria vaccine protects half who try it
An experimental malaria vaccine appears to protect half of the people who tried it for as long as a year — an effect greater than the only licensed vaccine now available, researchers said Monday. It's the first big success for a tiny company that's been working out of a Maryland strip mall for a decade, and offers some real hope to fighting an infection that kills half a million people a year, most of them children. The company, called Sanaria, makes the vaccine using the entire Plasmodium falciparum parasite. The vaccine protected 55 percent of volunteers from infection, and it stopped the parasite from circulating in their blood so that they could not infect anyone else, either.
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