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Concerns of Lipid Nanoparticle Carrying mRNA Vaccine into the Brain: What to Make of It?

Detailing the arguments for and against this concern with input from experts.

Shin Jie Yong, MSc (Res)
Microbial Instincts
13 min readMar 19, 2021

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We are all-in into vaccinating as many people as possible against Covid-19, with mRNA vaccines at the forefront. So, we might as well go all-in into understanding the little intricacies of how mRNA vaccine encapsulated by lipid nanoparticles (LNPs) might interact with delicate cell types — such as neurons in the brain — that a few experts have raised.

Before going further, the conclusion herein is that the actual risk of SARS-CoV-2 infection or Covid-19 largely outweighs the hypothetical risks of the LNP-encapsulated mRNA vaccine. But there are still a few concerns left unanswered, which deserve more transparency.

Current vaccines rely on spike protein

Nearly all the vaccine candidates for Covid-19 — such as the mRNA, DNA, viral vector, recombinant protein, viral-like particles, and peptide-based vaccines — rely on the SARS-CoV-2 spike protein to induce immunity.

  • The Pfizer-BioNTech and Moderna mRNA vaccines consist of an mRNA genetic material encased within LNPs that can fuse with muscle and immune cells upon injection. The released mRNA then…

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Microbial Instincts
Microbial Instincts

Published in Microbial Instincts

Decoding the microbial angle to health and microbial world (under Medium Boost program).

Shin Jie Yong, MSc (Res)
Shin Jie Yong, MSc (Res)

Written by Shin Jie Yong, MSc (Res)

Named Stanford's world top 1% scientists | Medium's boost nominator | National athlete | Ghostwriter | Get my Substack: https://theinfectedneuron.substack.com/

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