Dooms,
“2Scents – explain to my WHY CDC refuses to do a Vaxxed vs UnVaxxed Study?”
There are many explanations why it is not ethical not to vaccinate a group of people just for the purpose of a study, however the data is pretty clear, See below. (of course you only accept made up and twisted data that supports your theory, not true data).
JAMA 2275444
Conclusions and Relevance: In this large sample of privately insured children with older siblings, receipt of the MMR vaccine was not associated with increased risk of ASD, regardless of whether older siblings had ASD. These findings indicate no harmful association between MMR vaccine receipt and ASD even among children already at higher risk for ASD.