ROMA, 03 DIC - epa08858790 Austrian armed forces provide rapid antigen coronavirus tests during a nationwide mass testing at the Stadthalle event hall in Vienna, Austria, 03 December 2020. Austria has begun a massive nationwide operation, called 'Oesterreich testet' (Austria tests) to provide complimentary voluntary antigen coronavirus mass testings. Austrian capital Vienna will start testing up to two million Viennese citizens at three mass testing station on 04 December 2020. The tests are an offer for Austrian citizens to end a mandatory quarantine in case of a positive test result until the Christmas holidays. EPA/CHRISTIAN BRUNA CHRISTIAN BRUNA/ (ANSA).