Vaccine with and without preservatives

By SWA

 

Vaccines without Thimerosal and vaccine with PEG

What vaccines have no preservatives?

Measles, mumps, and rubella (MMR) vaccines do not and never did contain thimerosal. Varicella (chickenpox), inactivated polio (IPV), and pneumococcal conjugate vaccines have also never contained thimerosal. https://www.cdc.gov/vaccinesafety/concerns/thimerosal/index.html

What is the generic name for thimerosal?

Thimerosal is a mercury-based topical antiseptic and antifungal agent that is sold under the trade name Merthiolate. It is also used as a vaccine preservative. https://www.acs.org/molecule-of-the-week/archive/t/thimerosal.html

What are the reactions to thiomersal?

Localised allergic contact dermatitis (itchy red patches) may occur in sensitive individuals. This may include redness and swelling at the injection site when injectable thiomersal-containing products are used.
What is thiomersal and where is it found?

Thiomersal is an organic compound containing mercury and thiosalicylate. It is an antiseptic with both bactericidal and fungicidal action.

Historically, it was commonly used as a preservative in topical pharmaceutical preparations, cosmetics, and biological products such as vaccines. Its use is diminishing, especially in cosmetics. https://dermnetnz.org/topics/thiomersal-allergy

 

Anaphylaxis to the first COVID-19 vaccine: is polyethylene glycol (PEG) the culprit? https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7834677/

What is PEG ingredient in COVID vaccine?

If you are allergic to polyethylene glycol (PEG), you should not get Pfizer-BioNTech or Moderna COVID-19 vaccine. If you are allergic to polysorbate, you should not get Novavax or J&J/Janssen COVID-19 vaccine. Talk to your doctor about your options. https://www.cdc.gov/socialmedia/syndication/405380/415228.html

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