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
Basically we give cells a part of a virus, enough for the immune system to learn how to fight it but not enough of the protein blueprints to make full viruses that could spread.
So now weve shown the immune system what an infected cell would look like and how to get rid of it, and oncea cell actually becomes infected the immune system knows whats going on and how to fix it
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