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Geier DA, Kern JK, Hooker BS, et al. Thimerosal-containing hepatitis B vaccination and the risk for diagnosed specific delays in development in the United States: a case-control study in the vaccine safety datalink. N Am J Med Sci. 2014;6(10):519-31doi: 10.4103/1947-2714.143284.
Geier, D. A., Kern, J. K., Hooker, B. S., King, P. G., Sykes, L. K., & Geier, M. R. (2014). Thimerosal-containing hepatitis B vaccination and the risk for diagnosed specific delays in development in the United States: a case-control study in the vaccine safety datalink. North American journal of medical sciences, 6(10), 519-31. https://doi.org/10.4103/1947-2714.143284
Geier, David A, et al. "Thimerosal-containing hepatitis B vaccination and the risk for diagnosed specific delays in development in the United States: a case-control study in the vaccine safety datalink." North American journal of medical sciences vol. 6,10 (2014): 519-31. doi: https://doi.org/10.4103/1947-2714.143284
Geier DA, Kern JK, Hooker BS, King PG, Sykes LK, Geier MR. Thimerosal-containing hepatitis B vaccination and the risk for diagnosed specific delays in development in the United States: a case-control study in the vaccine safety datalink. N Am J Med Sci. 2014 Oct;6(10):519-31. doi: 10.4103/1947-2714.143284. PMID: 25489565; PMCID: PMC4215490.
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N Am J Med Sci. 2014 Oct;6(10):519-31. doi: 10.4103/1947-2714.143284.

Thimerosal-containing hepatitis B vaccination and the risk for diagnosed specific delays in development in the United States: a case-control study in the vaccine safety datalink.

North American journal of medical sciences

David A Geier, Janet K Kern, Brian S Hooker, Paul G King, Lisa K Sykes, Mark R Geier

Affiliations

  1. Institute of Chronic Illnesses, Inc, Silver Spring, Maryland, USA.
  2. Institute of Chronic Illnesses, Inc, Silver Spring, Maryland, USA ; Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
  3. Biology Department, Simpson University, Redding, California, USA.
  4. CoMeD, Inc, Silver Spring, Maryland, USA.

PMID: 25489565 PMCID: PMC4215490 DOI: 10.4103/1947-2714.143284

Abstract

BACKGROUND: Within the first 3 years of life, the brain develops rapidly. Its development is characterized by critical developmental periods for speech, vision, hearing, language, balance, etc.; and alteration in any of the processes occurring in those critical periods can lead to specific delays in development.

AIMS: The present study evaluated the potential toxic effects of organic-mercury exposure from Thimerosal (49.55% mercury by weight) in childhood vaccines and its hypothesized possible relationship with specific delays in development.

MATERIALS AND METHODS: A hypothesis testing case-control study was undertaken to evaluate the relationship between exposure to Thimerosal-containing hepatitis B vaccines administered at specific intervals in the first 6 months among cases diagnosed with specific delays in development and controls born between 1991-2000, utilizing data in the Vaccine Safety Datalink database.

RESULTS: Cases were significantly more likely than controls to have received increased organic-mercury from Thimerosal-containing hepatitis B vaccine administered in the first, second, and sixth month of life.

CONCLUSION: Though routine childhood vaccination may be an important public health tool to reduce the morbidity and mortality associated with infectious diseases, the present study supports an association between increasing organic-mercury exposure from Thimerosal-containing childhood vaccines and the subsequent risk of specific delays in development among males and females.

Keywords: Ethylmercury; Merthiolate; Thimerosal; Thiomersal; Vaccine

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