Let’s stop saying “goodbye “. Its religious connotations are subtle: it comes from “God be with you”. <\s>
I don’t say “God bless you” because it’s based on a silly superstition. It is not based on legitimate Christianity. It is not a religious act.
I will say it in the appropriate context. While we’re at it, sneezing into one’s hand is stupid. The hand then touches doorknobs, switches, noses and other hands.
Well, sanitizer or washing (for the hands, afterward) makes more sense than letting fly with sometimes airborne pathogens, if one (often) cannot reach a tissue or handkerchief in time.
(This from someone who picked up TB from a fellow employee who did not bother to cough or sneeze into their hand. It was believed he had a cold and TB. Nice mix.)
TB is pretty scary: Less than 10 bacteria inhaled can cause infection. (TB is NOT spread by touch, BTW.)