"were less than one percent of the people tested positive", with Free informed Ulrich, Executive health care at the Charité, on Monday on request. The Charité conducts the Tests at the two sites. Since Wednesday can be returnees to the Virus at the airport Tegel to the test. On Friday, a Test was set up in Schönefeld. The airport expects daily average of around 2000 people from areas traveling to Berlin, classifies the Robert Koch-Institute as at-risk areas. The Tests are currently still on a voluntary basis. Who can, however, have no current negative test result, after his return, need to quarantine in a 14-day domestic. On Monday, another Trial began in Berlin at the Central bus station the operating. Also at the Central station Tests are planned.