As measles cases surge in South Carolina, a doctor warns the disease is making a dangerous comeback in the U.S. Find out why non-travel-related cases are on the rise in this alarming report by CBS News' Skyler Henry and Dr. Céline Gounder.
As measles cases surge in South Carolina, a doctor warns the disease is making a dangerous comeback in the U.S. Find out why non-travel-related cases are on the rise in this alarming report by CBS News' Skyler Henry and Dr. Céline Gounder.