Gastrointestinal illness has gripped 100 people on the cruise ship Celebrity Infinity, according to a report from the Centers for Disease Control.
Of the ship's 2,117 passengers, 95 have suffered from vomiting, diarrhea and other symptoms, the CDC said. The illness has also affected five members of the 964-person crew.
The CDC has yet to determine what's causing the ailments. Two staffers from the agency are scheduled to meet the West Coast-based ship in San Diego on Monday.
