Every 20 seconds, a child dies from a disease that could have been prevented with a safe and effective vaccine, according to the U.S. Centers for Disease Control and Prevention.
Measles is one of the leading causes of childhood deaths worldwide. Not only does measles kill, but it can leave children blind, deaf or developmentally disabled, even while they are still in their mothers' wombs. Yet the disease can be prevented with just two doses of a safe and inexpensive vaccine.
When measles broke out in the U.S. state of North Carolina earlier this year, Pamela McCall was one of the health officials who tracked down the cases.
"It is one of those immunizations required for school entry, so most peo
