Japan said Tuesday it will strengthen border controls to keep new coronavirus variants at bay by requiring its citizens and resident foreigners returning from 13 other countries including Austria and Italy to go through additional quarantine measures.Returnees from the 13 countries where new virus variants are feared to be spreading will be newly asked to stand by at a designated facility after arrival for a retest for the virus on the third day after entering the country, effective Friday.The new requirement will be added to the current measures of turning in negative testing results withi…READ FULL ARTICLE