Japan's health ministry said Wednesday that 345 people in 21 of the country's 47 prefectures were found to have been infected with novel coronavirus variants first detected in Britain, Brazil and South Africa.Based on data by Tuesday, the ministry said domestic testing found 271 people were infected with a variant, while 74 were discovered similarly infected by going through airport quarantine checks.The Japanese government is concerned about the risk that variants may spread rapidly through the country and that currently available vaccines may be less effective against them, even as its va…READ FULL ARTICLE