US COVID-19 vaccine booster program to begin Sep 20
Broad Street Run 2021 requires COVID vaccine proof
Las Vegas Raiders to Require COVID Vaccines for Fans at Home Games – NBC 7 San Diego
Buffalo Bills to require proof of vaccination from fans
Las Vegas Raiders become first NFL team requiring fan vaccination, exempting them from state mask mandate – St George News
Bills, Sabres requiring fans to show proof of COVID-19 vaccination
Raiders will require fans to have proof of COVID vaccination
VERIFY: Do NFL fans need to be vaccinated for COVID-19?
Las Vegas Raiders detail alternate vaccine screening for first regular-season game