[xyzzy_plugh]

For chicken pox, it is not as rare as you might think. There are routine vaccinations for children and elderly alike.

I frankly would be unsurprised if an eventual covid vaccine is similarly administered to at-risk age groups, if not everyone.

[catalogia]

That doesn't answer my question though. What does the data actually say about the covid reinfection rate? I've heard of anecdotes, but haven't seen any numbers.