"After three doses of OPV, a person becomes immune for life and
can no longer transmit the virus to others if exposed again. Thanks to this "gut immunity", OPV is the only effective weapon to stop transmission of the poliovirus when an outbreak is detected."
Source
How much do you want to bet that covid jabbed people will still be able to spread and get sick from the virus even after their third shot? Put down a number
And don't even bring up pox because the number of recorded people spreading pox after being vaccinated is in the low double digits. How many "break-through covid cases" have there been recorded where vaccinated spread or got the virus? Countless.
"It is rare for vaccinated people to spread varicella vaccine virus, especially if they do not have a rash. Worldwide, since 1995, only 11 healthy vaccinated people have been documented as spreading vaccine virus to 13 unvaccinated persons."
Source