A medical worker collects a swab from a woman for a COVID-19 test in Glyfada, south of Athens, Greece, on Nov. 28, 2020. The Greek National Public Health Organization (EODY) on Saturday announced 121 COVID-19 deaths within 24 hours. It set a new daily record and brought the country's death toll to 2,223. (Photos: Xinhua)

A medical worker is seen at a COVID-19 testing station in Glyfada, south of Athens, Greece, on Nov. 28, 2020. The Greek National Public Health Organization (EODY) on Saturday announced 121 COVID-19 deaths within 24 hours. It set a new daily record and brought the country's death toll to 2,223.

A medical worker is seen at a COVID-19 testing station in Glyfada, south of Athens, Greece, on Nov. 28, 2020. The Greek National Public Health Organization (EODY) on Saturday announced 121 COVID-19 deaths within 24 hours. It set a new daily record and brought the country's death toll to 2,223.

A medical worker collects a swab from a man for a COVID-19 test in Glyfada, south of Athens, Greece, on Nov. 28, 2020. The Greek National Public Health Organization (EODY) on Saturday announced 121 COVID-19 deaths within 24 hours. It set a new daily record and brought the country's death toll to 2,223.