An expert of the National and Kapodistrian University of Athens measures samples for coronavirus concentration level in Athens, Greece, on Nov. 19, 2020. Greek authorities announced on Saturday 108 deaths from COVID-19 within 24 hours, hitting a record high and pushing the death toll since the country registered its first infection on Feb. 26 to 1,527. (Photos: Xinhua)

An expert of the National and Kapodistrian University of Athens measures samples for coronavirus concentration level in Athens, Greece, on Nov. 19, 2020. Greek authorities announced on Saturday 108 deaths from COVID-19 within 24 hours, hitting a record high and pushing the death toll since the country registered its first infection on Feb. 26 to 1,527.

An expert of the National and Kapodistrian University of Athens measures samples for coronavirus concentration level in Athens, Greece, on Nov. 19, 2020. Greek authorities announced on Saturday 108 deaths from COVID-19 within 24 hours, hitting a record high and pushing the death toll since the country registered its first infection on Feb. 26 to 1,527.