Vaccines do not cause autism, according to extensive scientific research and consensus from multiple authoritative health organizations.
False
Do vaccines cause autism?
Why Have Vaccines Been Ruled Out as a Cause of Autism? - History of Vaccines
Source: historyofvaccines.org
At a glance
Verified August 19, 2025Key Evidence
The original study suggesting a vaccine-autism link was retracted due to fraud and methodological errors.
pmc.ncbi.nlm.nih.govpmc.ncbi.nlm.nih.govVaccines and Autism: A Tale of Shifting Hypotheses
Multiple large-scale studies have found no association between vaccines and autism.
historyofvaccines.orghistoryofvaccines.orgWhy Have Vaccines Been Ruled Out as a Cause of Autism?
publichealth.jhu.edupublichealth.jhu.eduThe Evidence on Vaccines and Autism
Authoritative organizations explicitly state there is no causal relationship between vaccines and autism.
nationalacademies.orgnationalacademies.orgDo vaccines cause autism?
kidshealth.orgkidshealth.orgIs There a Connection Between Vaccines and Autism?
The reporting
What the Evidence Shows
The claim that vaccines cause autism has been thoroughly investigated and debunked by numerous scientific studies and health authorities. Initial concerns arose from a now-discredited study that suggested a link between the MMR (measles-mumps-rubella) vaccine and autism. This study was later retracted due to serious methodological flaws and ethical violations. Subsequent large-scale epidemiological studies have found no evidence supporting any association between vaccines and autism spectrum disorder (ASD).
Key points include:
Autism is a neurodevelopmental condition with complex causes, including genetic and environmental factors, but vaccines are not among them.
The increase in autism diagnoses over recent decades is largely attributed to improved awareness, broader diagnostic criteria, and better detection methods rather than vaccination.
Major health organizations such as the Centers for Disease Control and Prevention (CDC), the World Health Organization (WHO), the National Academies of Sciences, Engineering, and Medicine, and others affirm that vaccines are safe and do not cause autism.
Maintaining high vaccination rates is critical for preventing serious infectious diseases. The persistence of vaccine-autism myths poses a public health risk by contributing to vaccine hesitancy.
Primary trail