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[vaccine] Ingredients in Vacines- CDC Factsheet

In the series of blog posts that starts with this one, on the ingredients contained in vaccines, I will list out the ingredient, which vaccines contain it, what the quantities of the ingredient is in each vaccine and then what the benefits and threats are of these ingredients.

I am not a scientist. I am a concerned grandmother and citizen and will tell more of why I am doing this series in a later post.

This series will also include the most common injuries listed, and I will also post counter arguments from professionals who state that vaccines cause no harm and are safe.

This post is the PART 1 of 3 as an introduction to the series and discusses the CDC (Center for Disease Control & Prevention).


The CDC is a US Federal Agency tasked with protecting Americans, ALL Americans from threats to their health, safety and security, both domestic and foreign.

The CDC 's mission is stated as:

"CDC works 24/7 to protect America from health, safety and security threats, both foreign and in the U.S. Whether diseases start at home or abroad, are chronic or acute, curable or preventable, human error or deliberate attack, CDC fights disease and supports communities and citizens to do the same.

CDC increases the health security of our nation. As the nation’s health protection agency, CDC saves lives and protects people from health threats. To accomplish our mission, CDC conducts critical science and provides health information that protects our nation against expensive and dangerous health threats, and responds when these arise." []

The following information about vaccines includes excerpts from the federal agency's website. [] You can read the full page with this information by following the link.


Chemicals commonly used in the production of vaccines include a suspending fluid (sterile water, saline, or fluids containing protein); preservatives and stabilizers (for example, albumin, phenols, and glycine); and adjuvants or enhancers that help improve the vaccine’s effectiveness. Vaccines also may contain very small amounts of the culture material used to grow the virus or bacteria used in the vaccine, such as chicken egg protein.

What You Should Know

  • Millions of doses of vaccines are administered to children in this country each year. Ensuring that those vaccines are potent, sterile, and safe requires the addition of minute amounts of chemical additives.

  • Chemicals are added to vaccines to inactivate a virus or bacteria and stabilize the vaccine, helping to preserve the vaccine and prevent it from losing its potency over time.

  • The amount of chemical additives found in vaccines is very small.

  • All routinely recommended pediatric vaccines manufactured for the U.S. market are available in formulations that contain no thimerosal or only trace amounts.

Reference Materials
  • Vaccine ingredients sorted by vaccine[3 pages] U.S. Vaccine excipients (inactive substance used as a carrier for the active ingredients of a medication) and media summary, part 2 from the “Pink Book“

Common substances found in vaccines include:

  • Aluminum gels or salts of aluminum which are added as adjuvants to help the vaccine stimulate a better response. Adjuvants help promote an earlier, more potent response, and more persistent immune response to the vaccine.

  • Antibiotics which are added to some vaccines to prevent the growth of germs (bacteria) during production and storage of the vaccine. No vaccine produced in the United States contains penicillin.

  • Egg protein is found in influenza and yellow fever vaccines, which are prepared using chicken eggs. Ordinarily, persons who are able to eat eggs or egg products safely can receive these vaccines.

  • Formaldehyde is used to inactivate bacterial products for toxoid vaccines, (these are vaccines that use an inactive bacterial toxin to produce immunity.) It is also used to kill unwanted viruses and bacteria that might contaminate the vaccine during production. Most formaldehyde is removed from the vaccine before it is packaged.

  • Monosodium glutamate (MSG) and 2-phenoxy-ethanol which are used as stabilizers in a few vaccines to help the vaccine remain unchanged when the vaccine is exposed to heat, light, acidity, or humidity.

  • Thimerosal is a mercury-containing preservative that is added to vials of vaccine that contain more than one dose to prevent contamination and growth of potentially harmful bacteria.

For children with a prior history of allergic reactions to any of these substances in vaccines, parents should consult their child’s healthcare provider before vaccination.

ARTICLE IN PROGRESS .... Research is continuing and more information will be added ....

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