According to the Centers for Disease Control and Prevention, incidences of the mumps have decreased 99 percent since the era before widespread vaccinations. But tell that to the 10 states that have seen outbreaks of the mumps in the past month. So far, there have been 69 reported cases of the mumps this year. It seems to have started in Iowa, but it quickly spread to places like Colorado, Indiana and Massachusetts. The mumps virus ...