South Korea moved to tighten limits on gatherings again and expanded the use of mandatory vaccine passes, as new COVID-19 cases in Korea have hovered around the 5,000 mark for several days. According to health authorities, 5,128 new cases were tallied as of midnight Saturday, pushing the cumulative total to over 473,034. Although the latest figure was down 224 from the previous day, it is the highest the country has recorded for a Saturday, when figures typically drop due to the smaller numbe