Student volunteers from nine countries pose for a photo at the Wukesong Sports Center in Beijing. [Photo by Wei Xiaohao/chinadaily.com.cn]

For the safety of Olympic-related personnel and the city, a special "closed-loop" system will be implemented. It allows fully vaccinated Olympic-related personnel to enter China without undergoing a compulsory 21-day quarantine.

Within the closed loop, Games participants traveling to Beijing (and domestic staff in regular contact with other Games participants) will only be allowed to move around in dedicated vehicles between permitted destinations (such as Games venues, accommodation facilities, and dining facilities).