True, the absence of disease in our society has made us complacent. Without a direct memory of these events it is difficult to put this medical marvel into context. What many of us fail to realize is that our experience is the exception and not the rule. In many areas of the world where vaccinations have not become “routine,” parents and children continue to fear the very diseases we have forgotten. In 2013, it was estimated that 145,000 people (mostly children younger than 5) died from measles, a disease that has been preventable for over a half a century.