An outbreak of measles that started at Disneyland turned a spotlight on those who choose not to vaccinate their children. How did we get to a point where personal beliefs can triumph over science?
As the nation deals with a resurgence of measles, Retro Report examines how the science about the safety of vaccines has been questioned by a few, which is compromising the health of all of us.
Why is a disease thought to be wiped out in 2000 back with a vengeance in 2015? And what role has the media played in perpetuating unfounded fears?