This story has been repeatedly denied or covered up.

World Mercury Project
Oct. 19, 2016

Thomas Frieden, the director of the Center for Disease Control (CDC), has blocked CDC whistleblower, Dr. William Thompson, from testifying on scientific fraud and destruction of evidence by senior CDC officials in critical vaccine safety studies regarding the causative relationship between childhood vaccines and autism.
Attorneys Bryan Smith and Robert F. Kennedy, Jr., of Morgan & Morgan, have been seeking to have Dr. Thompson testify in a medical malpractice case to explain how the CDC committed scientific fraud in a series of studies, which found no link between vaccines and autism.

Read more: https://www.ecowatch.com/cdc-vaccine...051536402.html