CDC now has a record of the event
but since lab tests are not yet complete there is no confirmation of the norovirus being present.
If one proclaims 'I'll never cruise with XYZ again' they need to consider the ramifications of following through with it. Problems can happen with every line. Sooner or later you might find yourself fresh out of cruise lines. I once had what I considered an overall sub-par cruise aboard Grandeur Of The Seas. A few years later I cruised on that ship again and it ranks as one my best cruises ever. You just never know.