This is great news, adding to a report in Nature that the natural immunity produced in people who have already had covid may last a lifetime.[1] In case you hadn't heard, the Cleveland Clinic--consistently regarded as one of the top hospital systems in the United States and in the world--recently shared a study of 52,238 patients showing zero incremental benefit from the jab to the previously infected, recommending t…
>a study of 52,238 patients showing zero incremental benefit from the jab to the previously infected This study ended May 15, 2021, and it notes that: >Lastly, it is necessary to emphasize that these findings are based on the prevailing assortment of virus variants in the community during the study. It is not known how well these results will hold if or when some of the newer variants of concern become prominent. Ano…
That's not what this says -- you're extrapolating that the vaccine somehow changed the immune response, when this letter is only providing data that people who already had Covid had a clear, ~immediate antibody response to vaccination. That's exactly what you expect to happen when immune people see an antigen for a second time.
In other words, the previously infected recipients already had a well-primed immune response. The vaccination isn't necessarily doing anything to increase the response -- it's just the expected reaction of an already-primed immune system, when it a bolus of antigens it already knows about is injected into the body:
> The antibody titers of vaccinees with preexisting immunity were 10 to 45 times as high as those of vaccinees without preexisting immunity at the same time points after the first vaccine dose (e.g., 25 times as high at 13 to 16 days) and also exceeded the median antibody titers measured in participants without preexisting immunity after the second vaccine dose by more than a factor of 6.
If anything, this letter (not a paper) provides further evidence that vaccination for the previously infected is not necessary.