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What is the controversy behind thimerosal and autism?

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Thimerosal is a chemical that has mercury in it. That's a metal that can be harmful to the brain and kidneys at high levels. Doctors used thimerosal to prevent the growth of bacteria and fungi in vaccines.

There was no evidence that the small amount used in the medicines caused harm. Still, it was taken out of most children’s vaccines by 2001 at the urging of the American Academy of Pediatrics and the U.S. Public Health Service.

From: Do Vaccines Cause Autism? WebMD Medical Reference

SOURCES:

Indian Journal of Psychiatry : “The MMR Vaccine and Autism: Sensation, Refutation, Retraction, and Fraud.”

Offit, P., and Moser, C., Columbia University Press, 2011. Vaccines and Your Child: Separating Fact from Fiction,

American Journal of Medical Genetics : “Comorbidity of Intellectual Disability Confounds Ascertainment of Autism: Implications for Genetic Diagnosis.”

The National Academies of Sciences, Engineering, and Medicine: “Immunization Safety Review: Vaccines and Autism.”

The Lancet : “Retracted: Ileal-lymphoid-nodular Hyperplasia, Non-specific Colitis, and Pervasive Developmental Disorder in Children.”

BMJ : “How the Case Against the MMR Vaccine Was Fixed.”

CDC: “Thimerosal in Vaccines,” “Toxic Substances Portal – Mercury.”

American Academy of Pediatrics: “The Childhood Immunization Schedule: Why Is It Like That?”

The Journal of Pediatrics : “Increasing Exposure to Antibody-Stimulating Proteins and Polysaccharides in Vaccines Is Not Associated with Risk of Autism.”

Reviewed by Smitha Bhandari on May 20, 2018

SOURCES:

Indian Journal of Psychiatry : “The MMR Vaccine and Autism: Sensation, Refutation, Retraction, and Fraud.”

Offit, P., and Moser, C., Columbia University Press, 2011. Vaccines and Your Child: Separating Fact from Fiction,

American Journal of Medical Genetics : “Comorbidity of Intellectual Disability Confounds Ascertainment of Autism: Implications for Genetic Diagnosis.”

The National Academies of Sciences, Engineering, and Medicine: “Immunization Safety Review: Vaccines and Autism.”

The Lancet : “Retracted: Ileal-lymphoid-nodular Hyperplasia, Non-specific Colitis, and Pervasive Developmental Disorder in Children.”

BMJ : “How the Case Against the MMR Vaccine Was Fixed.”

CDC: “Thimerosal in Vaccines,” “Toxic Substances Portal – Mercury.”

American Academy of Pediatrics: “The Childhood Immunization Schedule: Why Is It Like That?”

The Journal of Pediatrics : “Increasing Exposure to Antibody-Stimulating Proteins and Polysaccharides in Vaccines Is Not Associated with Risk of Autism.”

Reviewed by Smitha Bhandari on May 20, 2018

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How did researchers try to find the link between thimerosal and autism?

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