Ugh. I'm not a fan of pharmaceutical corporations in the slightest, but parents who don't vaccinate their kids are incredibly irresponsible. I think if parents choose not to vaccinate against things that have been proven to respond to vaccinations should be penalized. I don't know exactly how though; isolating children could be detrimental developmentally and grouping unvaccinated kids could be the recipe for disaster, but there must be some option that protects the public from diseases their choices could be fostering.