Workers at University of Texas Southwestern Medical Center are tested every week. Of 8,969 unvaxed employees, 234 tested positive. Of 6,144 partially vaxed, 112 tested positive. Of fully vaxed, just FOUR positives. That's a 98% reduction among the fully vaccinated v. unvaccinated.

Another study of health care workers in California shows a 94% reduction in all infections when comparing those less than 7 days after first vax dose to fully vaccinated.

A 94-98% reduction in ALL infections among fully vaccinated v. unvaxxed is pretty close to sterilizing immunity, which means fully vaccinated people almost never transmit the virus.