We can hope. Some people have already become ill from COVID more than once.[1] This is rare, but it happens. Immunity from vaccination seems to be stronger than immunity from having the disease, but it's too early to be sure. How long vaccine immunity lasts is an open question. So far, it's at least N months, where N is how long the vaccines have been in wide use. Beyond that is speculation.
> Immunity from vaccination seems to be stronger than immunity from having the disease, but it's too early to be sure
Unless anyone can cite peer-reviewed sources that indicate otherwise, there doesn't appear to be any conclusive evidence on this point. In fact these publications provide evidence that naturally acquired immunity is just as effective as vaccination [1][2] ([2] hasn't been peer-reviewed yet).
> How long vaccine immunity lasts is an open question. So far, it's at least N months, where N is how long the vaccines have been in wide use. Beyond that is speculation.
I'm interested in recent peer-reviewed literature supporting this point, and would be grateful if anyone could share links.
[1] https://www.brgeneral.org/news-blog/2021/july/can-i-get-covi...