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Thimerosal contains a type of mercury called ethyl mercury. Thimerosal is a preservative used in some vaccines as a preservative. Since 2003 in the US you won't find it it childhood vaccines, but it is still used in multi-dose flu vaccines and one type of Td vaccine. It is still commonly used in less developed countries where it is impractical to transport a separate vial for each dose. Many vaccines contain aluminum. Aluminum is an adjuvant. An adjuvant boosts your immune response thus making a vaccine more effective. When metals are injected a much higher percentage of them make it into your bloodstream than when they are ingested. While many people are able naturally remove these metals injected into their bodies, some people are not so good at it. Body weight and genetics are factors. Inefficient detoxification leads to longer exposure times and increases the amount of metals able to cross the blood-brain barrier or get stored elsewhere in your body. The website: JustTheInserts.com has done a great job of compiling all the vaccine product inserts. Look through the Table of Contents on a specific vaccine's insert and find "Description". The ingredients for that specific vaccine will be listed there. MERCURY IN VACCINES Thiomersal, also called thimerosal, is an ethyl mercury derivative used as a preservative to prevent bacterial contamination of multidose vaccine vials after they have been opened. Hessel, Luc. “Le mercure et les vaccins” [Mercury in vaccines]. Bulletin de l'Academie nationale de medecine vol. 187,8 (2003): 1501-10. CHILDHOOD VACCINES AFTER 2003 UNDERSTANDING THIMEROSAL, MERCURY, AND VACCINE SAFETY 2003: All childhood vaccines with thimerosal as a preservative have passed their expiration date and are no longer available in the U.S. The amount of mercury in vaccines recommended for children is close to zero. Understanding Thimerosal, Mercury, and Vaccine Safety Food and Drug Administration (FDA) 2011 MULTIDOSE VACCINES VACCINE BASICS: U.S. CENTERS FOR DISEASE CONTROL AND PREVENTION Most vaccines do not have any mercury in them. However, multi-dose flu vaccines and one type of tetanus-diphtheria (Td) vaccine contain a small amount of thimerosal. Flu and Td vaccines are also available in thimerosal-free versions. CDC. “Vaccine Basics.” Vaccines & Immunizations, 2024, www.cdc.gov/vaccines/basics/. VACCINES IN LESS DEVELOPED COUNTRIES ABATING MERCURY EXPOSURE IN YOUNG CHILDREN SHOULD INCLUDE THIMEROSAL-FREE VACCINES Newborns and infants in less developed countries have a concentrated schedule of Thimerosal-containing vaccines (TCVs); pregnant mothers are also immunized with TCVs. Dórea, José G. “Abating Mercury Exposure in Young Children Should Include Thimerosal-Free Vaccines.” Neurochemical research vol. 42,10 (2017): 2673-2685. doi:10.1007/s11064-017-2277-x NEURODEVELOPMENT OF AMAZONIAN CHILDREN EXPOSED TO ETHYLMERCURY (FROM THIMEROSAL IN VACCINES) AND METHYLMERCURY (FROM FISH) This study is distinguished from others by assessing co-occurring exposures of organic-Hg forms (chronic high fish-MeHg consumption, and acute EtHg-Al in TCVs from vaccines taken during pregnancy and in infancy). We found neurodevelopment delays to increase with time (from six to 24 months) and that co-occurring Hg exposures to significantly influence only Mental Developmental Index tests in Amazonian children. Marques, Rejane C et al. “Neurodevelopment of Amazonian children exposed to ethylmercury (from Thimerosal in vaccines) and methylmercury (from fish).” Environmental research vol. 149 (2016): 259-265. doi:10.1016/j.envres.2015.12.022 EXAMINING THE EVIDENCE THAT ETHYLMERCURY CROSSES THE BLOOD-BRAIN BARRIER 22 studies from 1971 to 2019 show that exposure to ethylmercury-containing compounds (intravenously, intraperitoneally, topically, subcutaneously, intramuscularly, or intranasally administered) results in accumulation of mercury in the brain. Kern, Janet K et al. “Examining the evidence that ethylmercury crosses the blood-brain barrier.” Environmental toxicology and pharmacology vol. 74 (2020): 103312. doi:10.1016/j.etap.2019.103312 ENTRY AND DEPOSIT OF ALUMINUM IN THE BRAIN Aluminum, as a known neurotoxicant, contributes to cognitive dysfunction and may contribute to Alzheimer's disease. The important reason is that aluminum can enter and be deposited in the brain. There have been three routes by which aluminum could enter the brain from systemic circulation or the site of absorption. Aluminum fluxes into brain across the blood-brain barrier (BBB), the choroid plexuses and the nasal cavity. Some factors, such as the increasing of the blood-brain barrier permeability, citric acid and parathyroid hormone (PTH), and vitamin D, can promote aluminum to enter the brain. But the redistribution of aluminum out of the brain is slow, so aluminum can be deposited in the brain for a long time. Wang, Linping. “Entry and Deposit of Aluminum in the Brain.” Advances in experimental medicine and biology vol. 1091 (2018): 39-51. doi:10.1007/978-981-13-1370-7_3 ACUTE EXPOSURE AND CHRONIC RETENTION OF ALUMINUM IN THREE VACCINE SCHEDULES AND EFFECTS OF GENETIC AND ENVIRONMENTAL VARIATION We cannot stress how important it is that infants avoid aluminum from all sources, at all doses, due to the realities of cumulative risk from cumulative exposure. Selecting brands of vaccines that contain lower amounts of aluminum and avoiding the combination vaccines that have the greatest amounts of aluminum would be advisable for reducing toxicity. Recalling that aluminum adjuvants induce a Th2-biased immunological state, the use of other adjuvants known to induce both Th1- and Th2- reactions may prove to be medically beneficial and economical shift in the focus of developing safer vaccines. Requiring lower doses of adjuvants, longer periods of immunoefficacy, and safer vaccine schedules for vaccine approval by FDA so that neonates and infants have lowered exposures to neurotoxic metals during development may be more acceptable to an increasingly vaccine-risk aware public due to lowered exposures to neurotoxic and immunotoxic metals during development.
McFarland, Grant et al. “Acute exposure and chronic retention of aluminum in three vaccine schedules and effects of genetic and environmental variation.” Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) vol. 58 (2020): 126444. doi:10.1016/j.jtemb.2019.126444 AUTOIMMUNE/INFLAMMATORY SYNDROME INDUCED BY ADJUVANTS (ASIA) IN 2023 In 2011, a syndrome entitled ASIA (Autoimmune/inflammatory Syndrome Induced by Adjuvants; Shoenfeld's syndrome) was first described. ASIA aimed to organize under a single umbrella, the existing evidence regarding certain environmental factors which possess immune stimulatory properties, in order to shed light on a common pathway of autoimmune pathogenesis. Such environmental immune stimulators, or adjuvants, include among others: aluminum salts as in vaccines, various medical implants, as well as various infectious agents. Typical clinical symptoms of ASIA are: chronic fatigue, arthralgias, myalgias, pyrexia, sicca symptoms, cognitive impairment, and or (atypical) neurological symptoms. Typically, patients present with severe fatigue, nonrestorative sleep, and a majority reporting post-exertional malaise as is observed in ME/CFS. Cohen Tervaert, Jan Willem et al. “Autoimmune/inflammatory syndrome induced by adjuvants (ASIA) in 2023.” Autoimmunity reviews vol. 22,5 (2023): 103287. doi:10.1016/j.autrev.2023.103287 Comments are closed.
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