Two passengers who shared a room on Celebrity Cruises’ Celebrity Millennium ship, which carried only fully vaccinated passengers and crew, tested positive for COVID-19, the cruise line said in a statement.
The tests came back positive in the end-of-cruise tests, which were completed 72 hours before returning to the United States, Celebrity Cruises spokesperson Jonathon Fishman told USA TODAY.
All passengers were required to show proof of vaccination in addition to a negative COVID-19 test within 72 hours of the ship’s departure from the Caribbean island of Saint-Martin on Saturday. The ship is currently docked at Curaço and passengers who test positive remain in isolation on board, Fishman said. The ship will return to Saint-Martin this Saturday to disembark.
“The individuals are asymptomatic and currently isolated and monitored by our medical team,” the Celebrity statement read. “We are conducting contact tracing, speeding up testing for all close contacts and monitoring the situation closely.”
This article originally appeared on USA TODAY: Passengers positive for COVID after sailing on a 100% vaccinated cruise