A medical worker collects a sample from a reporter taking part in the Beijing Winter Olympics torch relay activities at a coronavirus test site in Beijing, Wednesday, Feb. 2, 2022. With more than 30 new COVID-19 cases being detected daily ahead of the Beijing Olympics, organizers said Wednesday they aren't worried and expect numbers to drop within days. (AP Photo/Andy Wong)

Medical workers wearing protective gear prepares swabs for people taking part in the Beijing Winter Olympics torch relay activities at a coronavirus test site in Beijing, Wednesday, Feb. 2, 2022. With more than 30 new COVID-19 cases being detected daily ahead of the Beijing Olympics, organizers said Wednesday they aren't worried and expect numbers to drop within days. (AP Photo/Andy Wong)

Medical workers spray disinfectant and prepare swabs for people taking part in the Beijing Winter Olympics torch relay activities at a coronavirus test site in Beijing, Wednesday, Feb. 2, 2022. With more than 30 new COVID-19 cases being detected daily ahead of the Beijing Olympics, organizers said Wednesday they aren't worried and expect numbers to drop within days. (AP Photo/Andy Wong)

A medical worker collects a sample from a reporter taking part in the Beijing Winter Olympics torch relay activities at a coronavirus test site in Beijing, Wednesday, Feb. 2, 2022. With more than 30 new COVID-19 cases being detected daily ahead of the Beijing Olympics, organizers said Wednesday they aren't worried and expect numbers to drop within days. (AP Photo/Andy Wong)

A medical worker sprays disinfectant as a reporter taking part in the Beijing Winter Olympics torch relay activities get a throat swab at a coronavirus test site in Beijing, Wednesday, Feb. 2, 2022. With more than 30 new COVID-19 cases being detected daily ahead of the Beijing Olympics, organizers said Wednesday they aren't worried and expect numbers to drop within days. (AP Photo/Andy Wong)