Episode 3: Vaccine Safety 3- Vaccines do NOT Cause Autism

This episode was updated in March 2026 to include analysis of why the vaccine-autism myth felt believable to so many parents, how failures in science communication allowed it to persist long after the evidence was clear, and what it would actually take for the conspiracy to be real.

Do vaccines cause autism?

In this episode, Heather examines one of the most persistent and emotionally charged claims about vaccines. She walks through where the idea came from, how it spread, and what decades of research involving millions of children have found.

She explains why early concerns were taken seriously, how they were investigated, and why the scientific consensus is now clear: vaccines are not linked to autism.

If this question has ever given you pause, this episode provides a thorough, evidence-based answer.

All citations at Infectiousdose.com
Marked explicit for mild language.