We asked, what is the percentage of the world's one-year-old children who have got those basic vaccines against measles and other things that we have had for many years: 20, 50 or 80 percent?
Vi frågade hur många procent av världens ettåriga barn som har fått grundläggande vaccin mot mässling och andra saker som vi har haft i många år: 20, 50 eller 80 procent?