The number of measles cases and outbreaks spiked last year, with unvaccinated people making up the majority of those affected, according to a new report from the Centers for Disease Control and Prevention.

In 2011, there were 222 cases of measles in the United States. That’s the highest number of cases reported here in 15 years, and more than triple the number of cases in 2009 and 2010.

And along with the increase in Measles outbreaks, we also have a increase in the number of Pertussis cases. Both easily prevented by vaccination.