I recently returned from a cruise with my family on the Norwegian Epic. Our port of call was San Juan. We were originally scheduled for a 7 day Caribbean cruise, but it turned out to be a few extra days due to the complications of the virus outbreak.
Everyone was temperature scanned before entry on the vessel to be sure no passengers had a fever. The staff was very, very diligent keeping everything clean and sanitary. All condiments were removed from the tables, and all the buffet items were given to the patrons from the crew. (The crew was wearing gloves, and with smiles on the faces). I'm sure this was a difficult task considering they were most likely working extra shifts to cover all the extra requirements to feed everyone in the buffet area. The condiments were handed out individually in small containers.
Everywhere you looked, there were crew members cleaning every surface. Elevator buttons, casino machines, handrails, tables, walls, everything. I even witnessed two people hand scrubbing every stair on the escalator. We were given constant updates on the current situation in all of the ports we visited.