It’s the definition of a first world problem: a new study from the Journal of the American Medical Association (JAMA) finds strong evidence that the recent rise in cases of measles  is at least partly caused by the growing number of “intentionally unvaccinated” children.

In response to 2015’s unexpected outbreak of measles at Disneyland California, Dr. Claire McCarthy, a primary care pediatrician at Boston Children’s Hospital, wrote a passionate editorial about the importance of vaccinations for our sister blog, Thriving. Her words are especially potent in light of this new research.

Read Dr. McCarthy’s commentary on Thriving.