What about COVID recovered people? Is there any data on that?
“infections among those immunized are rare”
“What about COVID recovered people?”
They just released that (vaccine) breakthrough report today (25 May), but if I recall correctly, there were several reports from other sources in past months, that confirmed very strong protection from re-infection, among those who had had COVID. Also, when they did happen to contract a second case, the severity and mortality were very much lower, on average.
“What about COVID recovered people? Is there any data on that?” (re-infection rates)
Mrsmith posted this yesterday: https://www.nature.com/articles/s41586-021-03647-4
It indicates that immunity is long lasting after natural COVID-19 infections with mild symptoms. Other studies have indicated that more severe symptoms elicited even greater immunity, on average.
I can’t vouch for the CDC data, but I do personally know one person who recovered and then got it a 2nd time. In her case the second time was far milder than the first.
TexasGurl24 responded in post #11 with links on long lasting immunity from naturally acquired COVID infections (one is about the same Nature article).
Circulating antibodies decline markedly in the month or two after an acute infection subsides. How long immunity persists then depends a lot on how strongly B-cell and T-cell memory were stimulated. Apparently, natural COVID-19 infections seem good at that, and severe cases even better.
That is also a major objective of vaccines, and a major driver for why many vaccines are given in a series of multiple shots.