In an exclusive interview with VOA, the director of Oxford University’s Jenner Institute says their new malaria vaccine, tested in Burkina Faso, has shown a preliminary efficacy rate of 77%, which could help prevent over 400,000 deaths a year, most of them in sub-Saharan Africa. Henry Wilkins looks at the burden of malaria on families in the region and the potential impact of the new vaccine in this report from Kaya, Burkina Faso.