A new peer-reviewed study by researchers Joseph Hickey, Ph.D., and Denis Rancourt, Ph.D., re-examined the mathematical models used to justify policies that barred unvaccinated people from public venues. They found the models were based on the application of flawed mathematical risk models.
https://childrenshealthdefense.org/defender/unvaxed-ties-pfizer-new-research-study-flawed/