Coronavirus: South Korea grapples with new infection clusters a month after easing social distancing rules

South Korea is braced for a fresh wave of infections centred on the capital Seoul almost a month after coronavirus restrictions were eased, as health officials grapple with newly emerging clusters before some 1.8 million students are set to return to school on Wednesday. The country, which had reported 11,541 cases as of Tuesday, endured one of the worst early outbreaks of the Covid-19 disease outside China, but appeared to have brought it under control thanks to an extensive “trace, test and…