The Council of Foreign Relations Global Health Program started tracking news reports about vaccine-preventable disease outbreaks late in 2008. It has now produced an interactive map that shows that data, tracking the number of recorded cases of diseases such as measles, mumps, and whooping cough across the world between 2008 and 2014. The results show a surprising number of vaccine-preventable diseases in developed countries with access to vaccinations. The majority of vaccine-preventable disease outbreaks during this time took place in less economically developed regions of the world.