This data visualization from the CFR (Council on Foreign Relations) represents preventable outbreaks, specifically of diseases with vaccinations. 'Vaccine-Preventable Outbreaks' shows the number of cases by disease as well as the number of cases by region.
The interactive map includes vaccine-preventable illnesses like measles, mumps, polio, rubella and whooping cough in all continents. Big data shows Africa has been hit the hardest, with South America suffering relatively few outbreaks. You can also adjust the time to show from 2008 to present outbreaks. 2015 so far shows the United States, Germany and Kyrgyzsten were particularly hard-hit, with considerably less instances in Africa. In fact, the United States has had more cases of measles than the entire African continent so far.