S.Korean teens drive up COVID-19 cases ahead of full school reopening

South Korea said on Wednesday it would ramp up COVID-19 testing at schools after a sharp rise of infections among children, weeks ahead of a plan to fully reopen schools nationwide. The surge comes as new social distancing rules aimed at a phased return to normal came into effect on Monday as a part of the country's plan to gradually move toward living with COVID-19 on the back of high vaccination rates.