I just ran across this post at Aetiology …. An open letter to my dad… in which Tara explains to her dad why perpetuating the anti-vax talking points is a bad, bad, bad idea…. I’ll just quote a wee bit…
Know the results of this vaccine backlash? Research dollars are diverted away from real causes of autism and other conditions. And kids are dying. Just in the U.S., there have been more than 1000 vaccine-preventable deaths in the last 6 years, and over 100,000 vaccine-preventable illnesses. Freaking whooping cough has made a huge comeback in the U.S. A big reason for the resurgence of these diseases is because anti-vaccine myths and scares spread so easily between acquaintances–in person, and on social media; scares that you’re now perpetuating with your own posts. Sure, it’s a free country and you have every right to share these pictures and memes, but have you thought about the possible harm it might do to others when you click “share”?
AMEN. Can I just say that this is the most eloquent take-down of the anti-vax mindset that I think I have ever read. WTG Tara- you are superwoman!
Blue Lab Coats 
Thanks!