<p>You feel condescended to because you know nothing. If you think I “know it all” based on my 20+ years of experience training public health professionals, then so be it. I could care less what you think. Your experience training public health professionals is what, exactly? Nada, correct? So, I may not “know it all”, but I know considerably more than you regarding public health. Other than being king/queen of the google, you have nothing of substance to offer the OP, do you? Right, that’s what I thought. If you don’t have anything of substance to offer the OP, why are you even bothering?</p>