Just a layman's point of view: I think the S-spike shedding problem is overblown. We know that the mechanism of the mRNA jabs is to cause our cells to produce the S-spike protein. This is supposed to be localized to the muscle area of injection, but in principle it can occur with any cell in the body (and this may be the source of many illnesses too, but we are not discussing those right now.) If S-spike is appearing in saliva, it is not unreasonable to expect it could be a "payload" in aerosols from jabbed person. Next question: obviously a "naive" (uninfected) person could inhale them. What then? The S-spike itself is incapable of reproducing. It may have some effect on the Naive, but logic suggests the quantity of protein would be very low. In fact, we can put an optimistic spin on it: the Naive is getting the "pure" S-spike with none of the other ingredients of a jab.