Daily testing, a barricade between the Olympic village and surrounding Beijing and strict rules prohibiting entry and exit from the "closed loop" have defined the Winter Olympics as officials tried to keep COVID out at all costs.
By the numbers: As of Saturday, 436 athletes, coaches and stakeholders had tested positive for COVID-19 out of 1.7 million tests conducted since Jan. 23, according to the Beijing Organizing Committee for the Olympic Games.
