Their earlier program, previously outlined on the Oceania website, was very generous. It was in place when a pre-boarding test was still required. Under it if you showed up and tested positive, but could show you had tested negative recently (I think it was 72 hours) your fare was reimbursed. If you could NOT show such a prior test the fare was not reimbursed. And then if you tested negative at boarding but later tested positive during the cruise you were given a per diem refund of your pro-rated fare. And during any quarantine on board medical cossts were waived for services performed by the Oceania medical team. Also, if you were positive at the time of disembarking Oceania paid for quarantine costs at the disembarking port. I was very surprised when I read about the program -- it struck me as more generous than a traveler should expect. But, in any event, all references to that program are now gone as far as I can determine.