Slim and none ..............
what a bummer
is the cruise line aware of it? unfortunately the new cruise guidelines are not bullet proof
since you didn't have it when you boarded the ship, you caught it on the ship or in a port
whats your way home? flying will put a lot of other people at risk
extend your vacation in a nice comfortable quarantine room with an ocean view
if not across country rent a car and drive home, If you drove to port your on your
way home by now