Vaccines and Sudden Cardiac Deaths in Young People; Listed As Risk On Vaccine Package Insert

Vaccines and Sudden Cardiac Deaths in Young People | The Most Revolutionary Act

Many vaccine package inserts list cardiac-related adverse events that have occurred either during clinical trials or during postmarketing. For example:

Recombivax hepatitis B vaccine: hypotension, tachycardia
Engerix hepatitis B vaccine: hypotension, tachycardia, heart palpitations
Infanrix (diphtheria-tetanus-acellular pertussis) vaccine: sudden infant death syndrome
Boostrix and Adacel (tetanus-diphtheria-acellular pertussis) vaccines: myocarditis
Flulaval and Fluzone (influenza) vaccines: chest pain
Death (listed as a “general disorder”) is one of the adverse experiences reported after approval and marketing of the Gardasil and Gardasil-9 human papillomavirus (HPV) vaccines. In an intriguing article in Autoimmunity Reviews just published by leading autoimmunity expert Yehuda Schoenfeld and an international team of colleagues, the authors propose that an autoimmune mechanism—namely, vaccine-induced autoantibodies against cardiac proteins—may be related to cardiac-related adverse reactions to HPV vaccination, including sudden cardiac death.

Another factor potentially linking vaccines and sudden cardiac death is thimerosal, the ethylmercury-based preservative. Thimerosal is still present in significant quantities in influenza vaccines and as a “trace amount” in the tetanus-diphtheria (Td) vaccine. Mercury has been shown to damage the cardiovascular system even at low levels of exposure.

Finally, where sudden infant deaths are concerned (some of which are cardiac in nature), there is abundant evidence that vaccines may be contributing in several ways. Epidemiological studies have highlighted a positive correlation between number of vaccine doses and increasing infant mortality rates, and case studies have described compelling temporal associations between vaccination and death.

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