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Would you perhaps be able to answer a question I've been wondering about?

Is this way of injecting mRNA really any different from just injecting someone with a virus? Not in the sense that it makes you ill but in the sense that a virus would do the same thing just with more harmful mRNA.

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In this case, the mRNA just gets your body to produce a part of the spike protein that is on the virus. Once the spike protein is floating around in your body, your immune system recognizes the spike protein and starts an immune response. The spike proteins themselves cannot actually replicate and attack the body. They are just a small part of the virus structure.

If you inject with virus, presumably the virus would begin to replicate and attack your body.

It's RNA to make the spike protein, so your immune system becomes infuriated and produces a reaction to kill cells that turned into factories for that protein.

You don't want the virus RNA, that would be presumably all that plus more!

The answer to your question is, it's a subset of the virus.

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