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>your own cells to produce spike proteins similar to the ones sars-cov-2 does

Does this destroy the cell used to make the spike proteins? Or does your immune system destroy the cells that made spike proteins?

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No, it doesn’t work like that mRNA isn’t a virus or virus like it doesn’t hijacks the cell. The mRNA fragments are picked up by dendritic cells and antigens are produced. The antigens (and the mRNA itself) are then attacked by special proteins within your cells that are designed to destroy foreign or malformed proteins and the fragments of those destroyed antigens are then presented in the cell membrane for T and B cells to inspect and produce antibodies against.

What about cytotoxic T cells? What would prevent them from killing the cell?

By the time you have a T Cell response the mRNA and the antigens would be long gone.

Not if it's a booster, or even the second dose. That's the whole idea of this chain, yeah?

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