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. South Korea has fully vaccinated nearly 90% of its adult population but only began inoculating children aged between 12 and 17 in recent weeks, administering just 0.6% of the age group with both doses so far.