>>9799178 (pb)
It is written especially dense. Probably on purpose.
The most interesting part to me was this: Cross-reactive SARS-CoV-2 T-cell epitopes revealed preexisting T-cell responses in 81% of unexposed individuals, and validation of similarity to common cold human coronaviruses provided a functional basis for postulated heterologous immunity[9] in SARS-CoV-2 infection[10,11].
In English: 81% of people not exposed to WuFlu had an immune response ("T-cell response") to it.
(Aside for some: vaccine or prior infection provides info to your immune system to be able to fight off same disease/virus in the future).
So, this article basically asserts they found:
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You do not need a specific antibody to fight off WuFlu.
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81% of people (well, their sample cannot probably be generalized to full population, but approx.) are already functionally immune to WuFlu.
>https://www.researchsquare.com/article/rs-35331/v1