Do Vaccines Cause Autism? Debunking the Myth with Science-Based Facts

July 13, 2025

The belief that vaccines cause autism is a common myth—but it’s not supported by science. Numerous large-scale studies have found no link between childhood vaccinations and autism spectrum disorder (ASD). This includes vaccines like the MMR (measles, mumps, rubella), which was at the center of the original misinformation.


The idea began with a now-discredited study from 1998 that has since been retracted for poor science and ethical concerns. Since then, researchers around the world have conducted extensive studies involving hundreds of thousands of children. The results are clear: vaccines are safe and do not cause autism.

Autism is a neurodevelopmental condition that likely results from a combination of genetic and early brain development factors. It is not caused by vaccines, diet, or parenting style.


At Little Rays ABA, we’re committed to helping families make informed decisions based on reliable, evidence-based information. Vaccines protect children from dangerous diseases, and avoiding them due to misinformation can put your child at greater risk.


Frequently Asked Questions

  • Do vaccines cause autism?

    No, scientific studies show no link between vaccines and autism.



  • Where did this myth come from?

    A now-retracted 1998 study falsely claimed a link between the MMR vaccine and autism.



  • Is the MMR vaccine safe?

    Yes, it’s safe and does not cause autism.



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