Doctor explains rising infant whooping cough death toll

The worst outbreak in 60 years of pertussis, or whooping cough, hits California, claiming a tenth infant life there. Nearly 6,000 cases have been reported in the state recently.

Why are so many getting sick now?

Dr. Laura Jana, pediatrician, appeared on American Morning this morning to explain the rising number of deaths. She shares with AM's Kiran Chetry the symptoms, the dangers, and how you can protect your child from whooping cough.