Vaccine proponents notched a win in California today. The State Senate Education Committee passed a bill that would require schoolchildren to be vaccinated. It would eliminate exemptions for the parents' personal or religious beliefs. The bill was delayed earlier after loud protest from vaccine opponents. One of the strongest centers of vaccine opposition is affluent Marin County, north of San Francisco. Dr. Matthew Willis is trying to change minds there. He is the public health officer for Marin County, and he joins us now from San Rafael. Welcome to the program.
BLOCK: And what is the percentage of unvaccinated kids in Marin County?