As part of this system, thousands of staff and volunteers started entering a bubble on Tuesday, which will see them have no physical contact with the outside world in order to limit the spread.
Participants and international media arriving the cover the Games will also enter the bubble on arrival in China, where they will remain for the duration of their stay.
The Beijing Olympics have made headlines in recent weeks, with countries like the United States and Australia boycotting the games by not sending any government officials to the event.