However it seems the majority of anti-vaxxers are liberals
The issue is where people fear a situation or outcome, and then draw their answers from their peers, who are also either un or ill-informed on the subject. Then you get bad answers to important questions, which no-one goes back to question (because now disagreeing with the answer means disagreeing with your social group).
Yeaaaaah. No. Not really
But to be honest a lot of people trained in "hard fields" have some trouble with concepts that are "easier" for the people in the humanities field
http://www.wired.com/2015/02/closer-look-silicon-valleys-dis...