In light of the recent measles outbreaks, Scott Krugman, MD, MS, FAAP, created a series of social media posts about vaccine-preventable infections. In this episode, he shares pearls from those posts so that we can learn more about these illnesses, which many practicing pediatric providers have never seen outside textbooks thanks to the success of vaccines. He also talks about how his social media posts were received online and why they were so popular.