Fact-check analysisVerified as of August 4, 2025Curated by FactVerify
True

Vaccines do NOT cause autism, do NOT contain aborted fetal cells and do NOT cause allergies or autoimmunity

Vaccines do not cause autism, do not contain aborted fetal cells, and do not cause allergies or autoimmunity according to extensive scientific research and authoritative health organizations.

ASAT - Autism and Vaccines: The Evidence to Date

ASAT - Autism and Vaccines: The Evidence to Date

Source: asatonline.org

At a glance

Key Evidence

Verified August 4, 2025
The reporting

What the Evidence Shows

Extensive scientific research over the past two decades has consistently found no causal link between vaccines and autism. The original claim suggesting such a connection has been thoroughly debunked by multiple large-scale epidemiological studies and meta-analyses.

Additionally, vaccines do not contain aborted fetal cells; rather, some vaccines are developed using cell lines originally derived from fetal cells decades ago, which are maintained in laboratory conditions and are not the same as aborted fetal tissue. Furthermore, vaccines have been rigorously tested for safety and have not been shown to cause allergies or autoimmune diseases. Health authorities such as the Centers for Disease Control and Prevention (CDC), Autism Science Foundation, and other expert organizations affirm that vaccines are safe and effective, protecting millions of lives without causing these adverse effects.

Primary trail

Verified Sources7

Autism and Vaccines: Read the Science

autismsciencefoundation.org
Open source

Vaccines are not associated with autism: An evidence-based meta-analysis of...

sciencedirect.com
Open source
Keep exploring

Where to go next

Continue with the evidence, catch up on the week, or save this check for later.

Share or return