I have a close friend who was on the Danube cruise last week. She had covid in April and had the monoclonal infusion. The doctor told her she could test positive for 90 days, and she informed Viking of it. They boarded the ship, went on their first excursion. Three suited gentlemen tracked them down, made them pack their bags and escorted them to the Ritz Carlton in Budapest for quarantine. They had a letter from the doctor explaining things, but Viking would not budge. The next day, they reached someone at corporate who understood. Viking came and retrieved them and drove them 3 hours to rejoin the ship in Vienna. Not a good beginning.