I beginning to suspect that this is really just about the Spike Protein. Biotoxin rather than virus would be easier to control and restore safe environmental conditions after desired effect have been achieved.

Seems to follow a linear dose response curve like most toxins. The vaxxed are walking Spike Protein bioreactors producing and shedding protein for up to six months (till next booster). If enough people are spewing the toxin in a given population, we see a surge in new "cases".