.... reads like a scientific paper all right, it was from July and I think I need the managers summary to get a more understanding and their premise/Abstract may be out of date already but there were some interesting points that caught my eye...
The fact SARs and other Coronavirus type viruses may have already created protection from the Wuhan Pneumonia (Covid-19) and if I understand this part right.
we tested N-, NSP7- and NSP13-peptide-reactive IFNγ responses in 37 donors who were not exposed to SARS-CoV and SARS-CoV-2. Donors were either sampled before July 2019 (n = 26) or were serologically negative for both SARS-CoV-2 neutralizing antibodies and SARS-CoV-2 N antibodies23 (n = 11).
Notably, we detected SARS-CoV-2-specific IFNγ responses in 19 out of 37 unexposed donors
So... IF .... big IF with my understanding relative to the depth of that paper, there SARS-CoV-2-specific interferon detections in 19 of 37 cases then POSSIBLY 50% of the population already had some prior exposure (in that family of viruses) and possibly ... possibly protection against the coronavirus strains in general including the Wuhan Pneumonia. That leaves so bloody many questions, what was the strain(s) for the 19 to create that respons, when did it happen, the efficacy of the T-cell response to the original Wuhan Pneumonia and its variants .... is a natural exposure required to produce the long term response needed, if they could identify what created the response in the 19 would they have been better served exposing people to a vaccine (or even the live virus????) .... AUGH... maybe I'll just go poor myself a whisky or Sabra.
Back from the year I was born...
https://www.youtube.com/watch?v=bbOrjHBaDzQ
Lots of papers out there for sure.
https://www.nature.com/search?q=Covid-19&journal=