Apparently the spike protein was developed as a "ethnic" bioweapon with differential ACE2 receptor binding kinetics and electrostatic interactions. Gov or pharma haven't revealed if the spike protein encoded by the vaccines alter this effect.
These non-sterilizing jabs don't kill the virus, breed more viral variants, hence endless booster $ for pharma.
COVID-19 vaccine efficacy and effectiveness—the elephant (not) in the room
Absolute Risk Reduction = 1·3% for the AstraZeneca–Oxford, 1·2% for the Moderna–NIH, 1·2% for