Almost 100 passengers aboard a Sun Princess cruise ship suffered from norovirus symptoms during a 10-day cruise of the South Pacific.

A spokesperson for Carnival Cruises, its parent company, would not confirm the numbers of passengers affected, but said that the highly contagious virus was prevalent in the communities of Queensland, New South Wales and Victoria, ABC News reported.

The ship ended its cruise on Thursday when it docked in Brisbane, Australia. Of the 2,000 passengers, 91 were infected, according to The West Australian.

Symptoms of norovirus include vomiting, diarrhea, stomach cramps, fever, chills and muscle aches.

This is the fourth reported outbreak of norovirus on the cruise ship this year.

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