But, we are talking about cruising and I highly suspect that the cruise lines will require proof of vaccination for awhile. So, if you "spread" it on the ship, it would be to another vaccinated person that hopefully would not get ill
The game changer here would be if Johnson & Johnson's candidate, which only requires a single-shot, is approved. If things continue well, they expect to apply for an EUA in January/February 2021. It was in the news the other day that they capped their Phase 3 trial to 40,000 enrollees instead of 60,000 because of the increased prevalence of the disease in the US, they expect that they won't need all those extra people to get results. In the article, they expected to get to their statistical significance in January and submit in February, though they said on the news the other day that due to the number of cases increasing, it could be faster than that...
https://www.statnews.com/2020/12/09...ne-study-due-to-prevalence-of-disease-in-u-s/
The AstraZeneca would really be a game-changer as well, but I have a feeling that their study (at least in the US) hit so many delays that they may not be until the end of Q1 2021...