BAYONNE, New Jersey -- A cruise ship on which nearly 700 passengers and crew fell ill has arrived Wednesday at its home port in New Jersey after a Caribbean voyage was cut short by an outbreak whose cause has not yet been determined.
The U.S. Centers for Disease Control and Prevention said its latest count puts the number of those sickened at 630 passengers and 54 crew members. The Explorers of the Sea ship was carrying 3,050 passengers.
Health investigators suspect norovirus, but lab results are not expected until later this week.
CDC investigators boarded the ship during its U.S. Virgin Islands Port call on Sunday. They said no single food or water source or other origin has been identified.
Explorer of the Seas is on track to depart at its originally scheduled time Friday afternoon on its next cruise, a 9-night trip with port calls in Puerto Rico, St. Thomas, the Dominican Republic and Haiti, a Royal Caribbean spokeswoman said.