CA law may me adding to whooping cough cases

July 26, 2010 5:28:26 PM PDT
It turns out California law could be contributing to the state's high number of whooping cough cases.

California is one of 11 states that do not require a booster shot when children enter middle school. The state also makes it easy for parents to sign school paperwork citing person beliefs for immunization exemptions.

So far this year, six California infants have died from whooping cough.