Cruise ship passengers won’t be able to disembark on Caribbean island without proof of a measles vaccination

Authorities in Curacao announced Friday they will quarantine a ship with 300 people aboard that is heading to the Dutch Caribbean island after they were banned from disembarking in nearby St. Lucia because of a confirmed case of measles.

Health officials said they will board the ship when it arrives early Saturday and assess who has been vaccinated or had the disease previously. They said proof is required, and that people who do not comply will be vaccinated immediately.

The 440-foot Freewinds ship is reportedly owned by the Church of Scientology and is normally docked in Curacao when not in use. Church officials have not returned messages for comment.

The ship left St. Lucia late Thursday after spending two days under quarantine. Authorities there said the ship’s doctor requested 100 vaccines after a female crew member was diagnosed with measles.