A teacher takes the body temperature of a schoolgirl to help curb the spread of the coronavirus before entering Kim Song Ju Primary School in Central District in Pyongyang, North Korea, in this Oct. 13, 2021 file photo. Before officially acknowledging domestic COVID-19 cases, Thursday, North Korea spent 2 1/2 years rejecting outside offers of vaccines and steadfastly claiming that its superior socialist system was protecting its 26 million people from "a malicious virus" that had killed millions around the world. AP-Yonhap |