In 2002, a local TV news investigation exposed a CDC study that found babies exposed to mercury in their vaccines were 2.5 times more likely to develop autism. The study was stamped “confidential, do not copy or release.”

In 2002, a local TV news investigation exposed a CDC study that found babies exposed to mercury in their vaccines were 2.5 times more likely to develop autism.

The study was stamped "confidential, do not copy or release."

Then the CDC released a different version, and the autism signal was gone. 🧵

— A Midwestern Doctor (@MidwesternDoc) October 29, 2026