I know I've talked about this before. Here's another article on the subject of the revival of easy-to-prevent diseases and a weird religious strain of anti-medicine foolishness from Vice.com:

Remember measles? That old-timey disease we officially eliminated in the United States 13 years ago? Thanks to the wonder of inoculation, measles should be entirely nonexistent in this country, but yesterday the Center for Disease Control reported 159 cases from January through August of this year. This puts our country on track for the worst measles year since 1996, when there were 500 reported cases—which is disturbing, especially because doctors and nurses aren't really trained to look out for measles anymore, because of the whole "elimination" thing.
What’s unique about this year's outbreak is that the CDC has finally admitted the spread of this “eliminated” disease is based on religious communities’ philosophical aversion to vaccines and reliance on divine healing through the Word of God. According to the report, 91 percent of the reported cases were in people who were unvaccinated, or didn’t know their vaccination status, and “of those who were unvaccinated, 79 percent had philosophical objections to vaccination.”
These cases began in religious communities, but eventually spread out of them and infected infants who couldn't legally be vaccinated yet.