[not2b]

If a large pool of people refuse the vaccine, they will eventually breed variants that make the vaccine less effective. To wipe out Covid, we need enough people vaccinated so that the disease dies out (doesn't have to be everyone), because the virus can't find enough new people to infect.

And a small fraction of people who are vaccinated won't develop a proper immune response, so they are still vulnerable. Nevertheless, once enough people are vaccinated it will die out.

[mikem170]

We will never wipe out covid, because it also is transmitted in a couple species of animals. We'd have to kill/vaccinate bats, civets, minks, etc.