Despite the existence of a tried and true vaccine, measles is one of the main causes of young childhood mortality [source: World Health Organization]. Measles continues to affect more than 20 million people each year, usually in Africa and Asia. It's getting better though. In 2008, about 83 percent of children were given their first dose of the measles vaccine by the age of 1. This was a huge improvement, and up from 72 percent in the year 2000 [source: World Health Organization]. Remember having the MMR (measles, mumps and rubella) immunization before going to school? That triple whammy of a vaccine has now spared millions of lives and serves as hope for millions more.