The Vaccine That Took 40 Years to Make

The World Health Organization last week recommended the first-ever vaccine for wide use against malaria, one of the world's deadliest diseases. Paul Kofi Awuffor, a public health worker in Ghana, shares how the vaccine can change lives, and WSJ's Denise Roland explains this historic landmark in public health. Learn more about your ad choices. Visit megaphone.fm/adchoices