Hello Nevermind, good to see you. Yes, even back in March it was obviously the Frequent Fliers who were spreading it around the world. A host of celebrities, politicians and sport stars were reported to have it weeks before I heard any personal reports, and even then it was the Murrays :/
Those tourists presumably thought they might be infected, or why scarper so quick? I can’t think of anywhere better to be quarantined than Switzerland.