Japan said Wednesday it will tighten border controls on travelers from seven additional countries, mainly from Europe, in response to the spread of new variants of the novel coronavirus detected in the states.The measure, to take effect Saturday, will involve Japanese nationals and others traveling from Estonia, the Czech Republic, Pakistan, Hungary, Poland, Luxembourg and Lebanon, according to the government.People arriving from the countries will be required to submit negative results from virus tests taken within 72 hours of their departure for Japan and take another test upon arrival.Th…READ FULL ARTICLE