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Moderna Scientists Warn mRNA Vaccines Carry Toxicity Risks

“A major challenge now is how to efficiently de-risk potential toxicities associated with mRNA technology,” the scientists wrote in the paper, which was published by Nature Reviews Drug Discovery on Jan. 23.

The Moderna and Pfizer COVID-19 shots use modified messenger ribonucleic acid (mRNA) technology. The mRNA is delivered by lipid nanoparticles (LNP).

The toxicity risks include “lipid nanoparticle structural components, production methods, route of administration and proteins produced from complexed mRNAs,” the authors of the paper said.

Authors of the paper include Eric Jacquinet and Dimitrios Bitounis, Moderna employees, and Maximillian Rogers, who was working at Moderna when the paper was being done.
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Moderna didn’t respond to a request for comment.
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The mRNA vaccines have multiple known side effects, including heart inflammation and severe allergic shock. Those may stem from hypersensitivity reactions, which can be elicited by “any LNP-mRNA component” but are most likely triggered by PEGlyated lipid nanoparticles, which is “the most potentially reactogenic component,” the scientists said.

Polyethylene glycol, or PEG, an ingredient in the Pfizer and Moderna COVID-19 vaccines, is known to cause allergic reactions. Outside scientists are divided over the mechanism behind the heart inflammation, while Pfizer has posited that the LNPs are behind the issue.
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The new paper drew from prior publications and other data. The authors didn’t carry out any new experiments.

Some of the papers cited included those that have found mRNA and the spike protein delivered by Moderna’s shot in various parts of human beings weeks or months after vaccination, despite health officials claiming when the vaccines were rolled out that such materials would exit the body within days.