Should be required for all the major diseases (not for the flu) or at least make it first degree murder for the parents who let their unvaccinated children infect and kill other children. There was a great opinion piece in the Milwaukee Journal-Sentinal about it too from someone who wasn't vaccinated and their parents were naturalist health nuts, you get everything and leave you very sickly, and they don't give you autism or anything like that either.
Involuntary manslaughter you
might have a case for. Good luck arguing that a kid dying because he caught something from another kid whose parents didnt vaccinate him was intentional and planned in advance by those parents, though