I don’t even know how stupid this question is. I was just watching [a video](https://www.sartorius.com/en/applications/biopharmaceutical-manufacturing/vaccines/vaccine-development/mrna-vaccines) on how mRNA vaccines are designed to work and I fully admit my biology is disgustingly rusty.
My main question is if we are injecting the blueprints instead of the protein itself, how are we preventing the body from taking that blueprint *everywhere* and having it be overwhelmed by the vaccine production–preventing it from producing other key and important proteins/stuffs in the body? Aren’t there areas of the body we don’t want producing this protein (like the heart or brain maybe)? How do we avoid the blueprint from getting there?
I feel like the answer is obvious, but I don’t know what to research. I’d love to understand this better.
In: Biology
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