So how long before the zombies take our cities?

[Neo-Scholastic]

Actually Drich, antivaxxers are a little more than merely people who don't like to take their medicine. If that's all they were they wouldn't be such a problem; Darwin Awards and all that. They are people who don't want anyone else to take their medicine, including their own children. Eschewing preventative medication allows and encourages disease to gain a foothold and flourish. Then you get idiots burbling on about government conspiracies and biological weapons.

Its worse than that, The anti-vaccine people are liberal upper middle-class white people whose children are spreading diseases to the vulnerable minority kids who haven't been vaccinated because poor access to health services.