Students wearing face masks study in a classroom at a school in Ankara, Turkey, on Sept. 11, 2020. Turkey confirmed 1,512 new COVID-19 cases on Thursday, raising the total diagnosed patients to 286,455, the Turkish Health Ministry announced. (Photos: Xinhua)

A teacher wearing a face mask gives a lesson at a school in Ankara, Turkey, on Sept. 11, 2020. Turkey confirmed 1,512 new COVID-19 cases on Thursday, raising the total diagnosed patients to 286,455, the Turkish Health Ministry announced.

A student has her temperature checked in a kindergarten in Ankara, Turkey, Sept. 11, 2020. Turkey confirmed 1,512 new COVID-19 cases on Thursday, raising the total diagnosed patients to 286,455, the Turkish Health Ministry announced.

Students wearing face masks study in a classroom at a school in Ankara, Turkey, on Sept. 11, 2020. Turkey confirmed 1,512 new COVID-19 cases on Thursday, raising the total diagnosed patients to 286,455, the Turkish Health Ministry announced.

Children wearing face masks prepare for classes in a kindergarten in Ankara, Turkey, on Sept. 11, 2020. Turkey confirmed 1,512 new COVID-19 cases on Thursday, raising the total diagnosed patients to 286,455, the Turkish Health Ministry announced.