Thimerosal Mercury in Vaccines Associated with Tics According to CDC ResearchBetween November 2013 and September 2014, I was in direct contact with the CDC Whistleblower, Dr. William Thompson. I recently wrote about my interactions with Dr. Thompson in an editorial piece that appeared in the winter 2017 edition of the Journal of American Physicians and Surgeons (22:119). One of the key issues that I discussed with Dr. Thompson was the relationship between thimerosal and tics, based on CDC’s own publications. The literature regarding thimerosal and tics (both motor and phonic) is quite compelling. Several of CDC’s own studies show that high levels of thimerosal exposure via infant vaccines can lead to tics later in life. Given this consistent body of evidence, one would think that the CDC would call for a ban on the use of thimerosal in vaccines. However, this has never happened. In fact, the CDC will not even state a preference for administration of thimerosal-free vaccines. Tics are a common feature in autism (occurring 4 times more frequently in autistic children than in neurotypical).