Sorry to play devils advocate. Most of my discomfort with this thread is that I was on this cruise and had a great time. There seem to be some people who are over dramatizing some events on the cruise. Maybe they experienced things differently but I think it is ok to give a balanced account.
So The original outbreak was on day 2-3. There is a 12 to 48 hour incubation period on average for norovirus. It seems like if there continued to be a large number of cases that lasted until after the cruise there must have been a lot of new cases during the cruise. I didn't personally know anyone who got sick. I didn't see a lot of people missing from the dining rooms. So unless there was a large number of people who weren't reporting their illness on board I have trouble believing an epidemic occurred. I'll shut up now.