S. Korea downgrades COVID-19 to lowest Class 4 infection level stocking 0 15 2023.08.31 21:57 https://youtu.be/mC78wproe_o + 2 코로나19, 감염병 등급 독감과 같은 '4단계' 분류 달라지는점은? The COVID-19 infectious disease level in the country has now ...