A Remarkable Vaccine Research Event Has Occurred: Reanalysis of CDC Data on Autism Incidence and Time of First MMR Vaccination

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In 2004, the CDC published what has become a notorious study that allegedly “disproved” the causal link between the MMR vaccine and autism.
However, one of the original scientists involved in the study, Dr. William Thompson, later admitted that they had doctored the results to hide the potential dangers of the MMR vaccine.

https://retractionwatch.com/2014/08/27/journal-takes-down-autism-vaccine-paper-pending-investigation/