A mother held her baby as she received an experimental malaria vaccine at the Walter Reed Project Research Center in Kombewa in Western Kenya in Oct. 2009.

Karel Prinsloo/AP hide caption

toggle caption Karel Prinsloo/AP
Experimental Malaria Vaccine Slashes Infection Risk By Half
  • Download
  • <iframe src="https://www.npr.org/player/embed/141460067/141478281" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
A Remnant From Algae In Malaria Parasite May Prove Its Weakness
  • Download
  • <iframe src="https://www.npr.org/player/embed/140069350/140079497" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Women hold mosquito nets after receiving them at a distribution point in Sesheke, Zambia. Researchers say malaria may have rebounded in some parts of Zambia and Senegal because of resistance to the insecticide-treated nets. ASSOCIATED PRESS hide caption

toggle caption ASSOCIATED PRESS