Vaccine fears are as old as vaccines themselves. But vaccine denialism has emerged as one of the biggest global health threats of the 21st century, with misinformation and rumors threatening to undo one of the greatest scientific achievements of the last 200 years. What are the philosophical objections rooted in these hesitancies? Why do people question the motives of scientists and doctors? And if vaccine rumors are here to stay, how do we move forward in the name of a healthier world?

Join Heidi Larson, author of Stuck: How Vaccine Rumors Start—and Why They Don’t Go Away and founder of the Vaccine Confidence Project, for a conversation about the roots of vaccine misbeliefs—and how we can change them.

Watch live on the Harvard Chan YouTube channel