Three years ago William Thompson, a Senior Scientist at the CDC and one of the main authors on thee study that is quoted as proving there is no link between vaccines and autism, admitted that they omitted statistically significant data from the study that showed there was indeed a link between MMR and autism*.
Black children who were vaccinated with the MMR before age three had a much greater risk of autism. It should also be noted that the link was also found in children of ALL ethnicities who have "isolated autism" --Isolated autism is simply autism without another Dx like MR, Fragile X, etc. So, in other words, the vast majority of all autism.
The movie Vaxxed explains all this and I highly recommend that you view it --it's free on Amazon Prime Video right now, you can also stream it for a few bucks on their website. (http://vaxxedthemovie.com/)
At the time, of course, the media crap storm began. Some insignificant, talking-head at CNN --some might call her a 'useful idiot', made a point of saying, "Some parents don't HEAR THIS WELL, vaccines do not cause autism." This started a video campaign by parents making their own "Hear This Well" videos.
Here is mine (a clip of which was used in the Vaxxed movie):
You can watch all the videos here: https://www.youtube.com/channel/UCFCrfK5rP_B6huriP1hLApw
*Interesting to note that I cannot find that statement on the website for his whistle blower attorney anymore... but here it is from the Wayback Machine.
https://web.archive.org/web/20140828211540/http://www.morganverkamp.com/august-27-2014-press-release-statement-of-william-w-thompson-ph-d-regarding-the-2004-article-examining-the-possibility-of-a-relationship-between-mmr-vaccine-and-autism/