MPH Student Lakshman Balaji recently produced this post about Measels in New York.

Measles in New York: One of the worst measles outbreaks of recent times is happening right now in New York. I wanted to figure out where the vaccination exemptions are happening, and used public data to create this map of exemption rates in the school districts of New York State. 
http://www.rpubs.com/Lakshman/490765