A health worker takes a sample for COVID-19 test from a laboratory refrigerator in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

People wait for COVID-19 test at a laboratory in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

A health worker carries out COVID-19 tests at a laboratory in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

A health worker wearing personal protective equipment is seen at a laboratory for COVID-19 test in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

A health worker carries out COVID-19 tests at a laboratory in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

A health worker takes a swab sample for COVID-19 test from a man at a laboratory in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)

A health worker holds a sample for COVID-19 test at a laboratory in Baghdad, Iraq, on Nov. 17, 2020. The Iraqi Health Ministry reported on Tuesday 2,961 new COVID-19 cases, bringing the nationwide infections to 524,503. (Xinhua)