Q&A: Pandemic prevention at Beijing 2022 Winter Olympics

Q: What does the closed-loop management mean?

Huang: To allow everyone to perform the day-to-day activities that are essential to their roles during the Games. A special system has been defined to keep Games participants and people in China safe by reducing unnecessary interactions. This closed-loop system allows Games participants to enter China without undergoing a compulsory 21-day quarantine, provided they are fully vaccinated, according to the playbooks.