Carl Krawitt has had just about enough. “It’s very emotional for me,” he said. “If you choose not to immunize your own child and your own child dies because they get measles, OK, that’s your responsibility, that’s your choice. But if your child gets sick and gets my child sick and my child dies, then … your action has harmed my child.”

Krawitt is taking action of his own. His son attends Reed Elementary in Tiburon, a school with a 7 percent personal belief exemption rate. (The statewide average is 2.5 percent). Krawitt had previously worked with the school nurse to make sure that all the children in his son’s class were fully vaccinated. He said the school was very helpful and accommodating.

Now Krawitt and his wife, Jodi, have emailed the district’s superintendent, requesting that the district “require immunization as a condition of attendance, with the only exception being those who cannot medically be vaccinated.”