You fail to demonstrate what is "unbelievable" about this:
"Last but not least is an appeal to authorities that help legitimize the anti-vaccination argument. The modern anti-vaxxer movement has an abundance of these, led by Andrew Wakefield, the now discredited former physician who originally published the fraudulent study linking the MMR (measles, mumps, rubella) vaccine to autism."
It's the absolute truth, except for nutty--and dangerous--anti-vaxxers.