In fact, the patients, had been on a Mexican Riviera cruise and reported only minor medical complaints as the cruise ship began to dock; none had to be transported to hospitals for further treatment.

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“To mitigate any impact of this rare occurrence, we implemented stringent sanitation procedures. As always, we will continue to monitor this situation,” the cruise line quoted to CNN concerning the guests who experienced the stomach-related illness.

What is more, it was on Sunday, November 24, when six passengers on the Norwegian Joy from a Panama Canal voyage arrived to Los Angeles and were treated for flu-like symptoms.

In particular, the passengers were diagnosed with norovirus, and were among 127 passengers and six crew members who reported being ill while aboard the ship, suffering mostly from diarrhea. Then, Norwegian Cruise Line employed special cleaning and disinfection procedures in response to that outbreak.

Recently, a norovirus outbreak made passengers and crew on board the Princess Cruises ship 'Sun Princess' evacuate the ship, as hundreds got sick. The cruise ship had departed on November 1st from Australia, heading to Singapore, carrying 2,000 passengers.

According to reports, around 229 passengers showed signs of the virus, which can include nausea, stomach pain, vomiting and diarrhea, thus causing the ship to be evacuated in Singapore. After that a cleaning operation took place, with some passengers eventually choosing to fly back to Australia, and not continue with the trip.