I haven't been able to go over this whole thread, especially since I was incommunicado for a week while on the Fantasy. I did 2/29-3/7 and can give some recent info.
First - passport checks. Last year I visited Shanghai, Hong Kong, and Japan, so my passport had recent stamps from those places. The check-in agent did go thru every page and noticed those, so stepped aside to make a phone call and ensure everything was ok. I wasn't worried since I visited 4 months prior, well before the virus started, but it was interesting to note. So if you have been to a virus hotspot recently, be aware they are doing in-depth checks of the passports. I was seated at a table with a couple from Japan, however they had been living in the US for several months, so after verifying that, they were allowed to board. If they had come direct from Japan, they wouldn't have been allowed on.
Second - the ship itself. I never felt like I was in a cleaner environment than on the ship. As usual, they were diligent and ensured people washed hands/used disinfectant wipes before eating. I noticed more crew members by the drink and ice cream stations making sure to keep them clean. And it was rare to walk down a hallway and not eventually run into a crew member cleaning down handrails. I felt completely safe (much more so than the plane flight away from Orlando last night, but that's another issue altogether). We are doing another
Disney cruise in May (Alaska) and have no plans to cancel or change it.
And then there’s me . I’ve switched DCL cruises just to get away from someone who 1) has an underlying health issue and who is bullheaded enough to go on a cruise before mine to 2) Italy 
