Are vaccines worth the purported risk?

The Sunday, February 8th New York Times' Opinion section includes an article that address the very controversial issue of vaccination.  After reading the article titled  "The Dangers of Vaccine Denial" (see link below:
http://www.nytimes.com/2015/02/08/opinion/sunday/nicholas-kristof-the-dangers-of-vaccine-denial.html?ref=opinion&_r=0) summarize the author's views and yours in the blog.  Be ready to share your opinions and the author's before your fellow classmates for extra credit.