The above is an example of how scientists and journal editors could better communicate findings and risks
The widespread and baseless fears that there would not be immunity to #covid19 could have been reduced, rather than increased, by more careful reporting of the same data
From the same study:
~50% of people infected with endemic coronaviruses still have higher levels of antibodies after 4 years
No reason to think that #covid19 would be wildly different
(antibodies don't necessarily = clinical protection, but still good data)
So it is absolutely no surprise that for #covid19 we find:
"About 95% of subjects retained immune memory at ~6 months after infection."
This is what we would expect for a novel coronavirus that behaves like other more familiar coronaviruses