Hundreds of passengers and crew members were reportedly locked up on the cruise ship on the Caribbean island for three days from Thursday morning after the authorities confirmed that someone on board had the virus.
The local government ordered the 300 crew members and passengers aboard the Freewinds to remain on the ship during the investigation. The 440-foot ship is said to belong to the Church of Scientology.
The majority of passers-by on board are crew members, including the woman who was tested positive for measles.
Authorities said they are planning to put the ship in quarantine again as soon as it arrives in Willemstad, Curacao, the home port. There, a team of local health officials will review those on board before consulting with international health authorities about a disembarkation plan, ABC News has learned.
The ship would arrive on Saturday morning at dawn.
"We have early information [Thursday] & # 39; in the morning through two sources, two reputable sources, that there was a confirmed case of measles aboard a cruise ship that visited our island, "said Dr. Merlene Fredricks James.
The CDC has been following the worst peak in the US in decades, with more than 700 cases in 22 states. The outbreak usually affects people who have not been vaccinated.
"It starts with cold symptoms – fever, cough, runny nose, and sometimes red eyes, and that can take about 3 or 4 days before the rash occurs," said Dr. Vikram Anand. "So if you are not vaccinated and you have what may seem like a bad cold, it might be measles."
Doctors say it is one of the most contagious viruses in the world when an unprotected person is exposed to measles. They say they have a 90% chance of contracting the disease.