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by hajile 1693 days ago
The vaccine develops a single antibody against a single spike protein. Natural immunity develops not only a spike protein antibody, but also antibodies against a bunch of other parts of the virus.

If the virus alters the spike protein (eg, the A.30 variant which is pretty much immune to the vaccine), all those other antibodies against the unchanged parts are likely still effective at slowing the virus while new antibodies are developed.