Throughout the day, vans loaded with bags full of Covid PCR test kits arrive at a Vienna laboratory, currently analysing an average of 370,000 tests a day. The laboratory is the backbone of Austria's 'gargle' system aimed at making it easy for those in Vienna to test for the new coronavirus frequently -- and free of charge. Under the "Alles Gurgelt" ("Everybody Gargles") system, Viennese can register online, go to a drugstore, pick up a test kit, gargle at home and then drop the kit back and wait for an email with results within 24 hours. IMAGES AND SOUNDBITES