Envision San Diego: When Immunity Fails: The Whooping Cough Epidemic

Thirty years ago whooping cough had nearly disappeared. Today, it's back. The epidemic has already killed 10 babies and infected thousands of children this year in California. In "When Immunity Fails: The Whooping Cough Epidemic," KPBS and the Watchdog Institute at SDSU are working together to look at who’s getting sick, facts about the vaccine, and how public health agencies have responded.