Now, it doesn't seem that anyone's actually done the science on that one, but Mnookin's point here is obvious — the anti-vaccination movement is fueled by an over-privileged group of rich people grouped together who swear they won't put any chemicals in their kids (food or vaccines or whatever else), either because it's trendy to be all-natural or they don't understand or accept the science of vaccinations. Their science denying has been propelled further by celebrities such as Jenny McCarthy, Robert Kennedy Jr. and actress Mayim Bialik, who is also a neuroscientist and even plays one on TV.