Thank you both.

You're both really on this so a final question. Are there ways to keep this virus from getting through or past the respiratory tract and avoiding the whole blood vessel problem? I say this noting injected vaccines are obviously not any kind of solution to enable this and understand it is probably really hard to do unless previously infected and have good IgA antibodies about. Also guessing you don't want to have bad periodontal disease or a susceptibility to nosebleeds. :-/