Measles cases in the U.S. are at the highest level in more than a decade, with nearly half those cases resulting from parents who rejected vaccinations.  Wall Street Journal story

The U.S. typically sees only one outbreak of measles every year, affecting 10 to 20 people. In the past seven months, there have been seven outbreaks.

There have been 131 cases in seven months this year, compared to 42 cases in all of 2007.  While those look like small numbers, consider if the measles cases continue to triple every year. 

2009 = 393

2010 = 1179

2011 = 3,537

2012 = 10,611

And that is how an epidemic starts. Please, please vaccinate your children. There is no solid scientific evidence that shows vaccines cause autism.