How do the Pfizer and Moderna mRNA vaccines work?
Another thing that I was wondering about is this:
> … no [mRNA] vaccines of this type have been approved for widespread human use.
according to [CBC](https://www.cbc.ca/news/health/covid-19-vaccine-pfizer-faq-1.5795486).
Why is this the case? Thanks!
In: Biology
mRNA vaccines take harmless viruses that our body can efficiently identify and respond to, and they basically insert RNA from the virus you are actually trying to fight into the carrier virus. This allows our body to mount an immune response to an active virus, but not one that can damage the body.
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