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dish waiting too get covid. reporter: ashley peterson, on an eight-day cruise, said it was a nightmare. i didn t feel safe at all. i spent most of the time in my cabin. reporter: royal caribbean odyssey at the seas spent one day at the sea before turning back to fort lauderdale after a passenger tested positive. and more than 50 people came down with covid on another ship. these outbreaks happening despite enhanced safety protocols. all three cruise lines requiring passengers to show proof of vaccination and negative covid test, while encouraging mask use indoors. i had no concerns at all. cleanliness standards were really good. i think they responded really quickly to continuing everything. reporter: not the holiday season the cruise ship industry was hoping for. as they anticipate a busy 2022.
professionals. dr. anthony fauci says he supports the cdc change. he says it is ample protection after five days in isolation to wear a mask. benjamin. benjamin: david lee, thank you so much. julie: travel problems are not only involving airplanes but also on the high seas. the cdc now investigating at least 86 cruise ships with covid outbreaks on board. they include disney, carnival, royal caribbean and norwegian. you remember the cruise ship industry was an early epicenter of the pandemic before staging a comeback during the fall. we should also note the cruise ships require for people to be vaccinated before getting on board and showing a negative covid test. these are outbreaks, breakthrough cases many of them. benjamin: there is yet another sobering milestone in
but we re still dealing with the effects of that domino effect of all these cancelations and delays. incredible that this is still the top story two years later. not just airlines being disrupted but also cruise ships being impacted. what are you learning? reporter: the cruise ship industry, again, is being impacted by covid-19. just this past week at least four cruise ships, they weren t allowed to dock at ports of call, and passengers were not allowed to disembark because of covid-19 cases on board. now, the cruise ship industry resumed service over the summer with vaccine requirements and measures in place to try to mitigate outbreaks, and even since then there have been covid-19 outbreaks on ships. case in point there was a carnival cruise line in august, 27 people tested positive for covid-19. they were isolated, and passengers were still allowed to disembark once they showed