The Origin of the Anti-Vax Movement

How did we become a society that successfully used Vaccines to eradicate several types of diseases only to now have a significant portion of the population distrusting vaccines as a whole?  Where and when did it start?  Mark and Jeff explore the origins of the fabricated study that launched then entire anti-vaxx movement.  Previously it was very fringe and although the origin has been proven to be false, nobody seemed to notice the correction until it was way too late.