That quote is exactly correct. For someone to run around in this thread claiming "
even mild Covid infection will regularly create lifelong immunity to #19." doesn't actually understand what those terms mean and is now making up science to justify his false beliefs.
Persistence of antibodies =/= long-lasting or lifelong immunity. Antibodies reflect antigenic memory, but do not ensure immunity. This is the reason why older adults receive vaccinations now for Varicella-zoster and Pneumococci, despite most older adults having a history of infection with both (and in many cases have persistent antibodies).
Even more disturbing is the fact that someone is claiming I said something to support his points. Nowhere are my posts actually quoted. I request the person claiming I said such things delete those posts, because I have never said such a statement (e.g. "even mild Covid infection will regularly create lifelong immunity to #19.").
It is incredibly intellectually dishonest to suggest I said such a thing. Par the course for his/her posting style.