We're turning now to another story about vacation disaster at sea, the second cruise ship brimming with sick passengers limping back to dock early. Here's ABC's gio Benitez. Reporter: Today, yet... See More
We're turning now to another story about vacation disaster at sea, the second cruise ship brimming with sick passengers limping back to dock early. Here's ABC's gio Benitez. Reporter: Today, yet another cruise ship with another spected norovirus outbreak, docking early. This time in Houston, the caribbean princess, with more than 170 sick passengers. Tons of people were sick on board. We were confined to the room for Reporter: Princess cruises tell us they decided on Wednesday to cut the trip short, but they say it was because of forecasts of fog, not the outbreak. Give me a break. It's like saying at 7:30 next Sunday we're going to have fog. Reporter: In New Jersey, these people set off on the explorer of the seas. The same ship where nearly 700 people came down with norovirus earlier this week. As the explorer now heads out to sea again, royal caribbean says the ship has been scrubbed from top to bottom since it docked Wednesday. Everything from the staterooms to the swimming pools. Norovirus is so contagious, if it arrived in, say, contaminated seafood, not only would everyone who ate the fish likely get sick, but the virus could spread to those who handled the fish, and to anyone who touched the ice it was served on. Hand sanitizer won't help. The best thing to do on a cruise is, don't share food and use your elbows to open doors. And hope for no unwelcome stowaways on your dream vacation. Gio Benitez, ABC news, bayonne, New Jersey.
This transcript has been automatically generated and may not be 100% accurate.