The world’s most advanced malaria vaccine, made by GlaxoSmithKline and targeted towards children, has cleared its final scientific hurdle. GSK chairman of vaccines and the vaccine’s co-creator Moncef Slaoui discusses. Photo: D. Poland/PATH Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook: / videos On Twitter: / wsj On Snapchat: https://on.wsj.com/2ratjSM