De: "There's no reason for an infection to have to begin in the nose. It just commonly does."
No, De, there IS a reason - or reasons - respiratory infections should begin in the nose. Multiple reasons why it would make sense for them to preferentially begin there. I can think of enough reasons that would be their attack vector, and enough anecdotal evidence, that common sense (which can be misleading) suggests they should almost always begin there.
And, to the extent, they have been selected for to begin in the nose, they are less selected to begin elsewhere.
I wasn't asking to you display your credentials as a medical researcher; I was asking for links to articles or anything you had so you might educate me. (I wasn't claiming to know everything) I get the feeling you didn't take 1 minute to think before posting your initial "rebuttal"?
Sometimes I make that mistake; usually when I am tired, ill, or rushed. So no biggie.
But I think my theory, in this case, is worth better. And I would appreciate anything you can come up with in terms of links or good arguments.