What I said about immunity is what I understand to be current thinking and could change with more data; 6 ID docs, 8 opinions, that sort of thing.
And sorry. didn't mean to come off as defensive, only privacy-centric. My "source" has been through the literature and has had 1st-hand email and phone interactions with many of the Covid-research luminaries - and I was passing on what I was told about where we are when I asked. I myself have not done the legwork or any manner of full due diligence on the topic because I don't have enough of a background to fully grok the theories related to things like "original antigenic sin" or mucosal antibody persistance; I just "know a guy" who can give me a quick summary so I can post on the interwebs (as if I know what I'm talking about) if I feel that might help someone.
I do not feel comfortable sharing methods and sources here, so realize that any related statements require the usual sodium chloride chaser.
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