Japan will tighten restrictions on travelers from South Africa and five nearby countries after the discovery of a new coronavirus variant there, the government's top spokesman said Friday.Travelers who have recently been to Botswana, Eswatini, Lesotho, Namibia, South Africa or Zimbabwe will be required to spend 10 days in a government-designated facility upon their arrival, Chief Cabinet Secretary Hirokazu Matsuno told a press conference.The move, which takes effect Saturday, comes amid mounting concerns over the spread of a coronavirus variant known as B.1.1.529, which infectious disease e…READ FULL ARTICLE