[chaostheory]

So there's no chance of immune escape? I thought at the very least, it'd be like the flu vaccines where the virus mutates often enough that we all need periodic booster shots.

[occamrazor]

This article says that _if the virus doesn’t mutate_ the immunity is probably long lasting. It doesn’t directly address the orthogonal issue of immune escape.

[chaostheory]

Has it not already mutated?

[occamrazor]

Yes, but the mutations fortunately had only a limited effect on vaccine efficacy.

[standardUser]

The coronavirus does not mutate as rapidly as the flu, so there was always a good chance we wouldn't need frequent boosters.