CNN reported the ship had left St. Lucia, and online ship traffic data showed that the vessel was underway and headed for the island of Curacao.
"Whilst in our ports, we will continue to monitor and will not allow disembarkation, given the contagious nature of the disease", she said.
NBC News reported that almost 300 passengers and crew were aboard the vessel, with one female crew member diagnosed with measles. The ship reportedly belongs to the Church of Scientology.
In this case, he says, those on the ship would do well to have some "diversionary activity" to take their minds off of the stress, such as exercising in an area that is measles-free.
One case of measles had been confirmed on the ship docked in port near the capital of Castries since Tuesday, Dr Merlene Frederick-James, St. Lucia's chief medical officer, said in a video statement.
Although the measles outbreak and quarantine in St. Lucia is cause for alarm, Dr. Siegel, who authored the book "False Alarm", said that most people diagnosed with the virus end up being fine.
"Continued surveillance is necessary as the incubation period for measles ranges from 10 to 12 days before symptoms in exposed persons occur", the statement said, according to CNN. According to the church's website, the ship is a religious retreat for Scientology members.
According to Tim Moody, former chairperson of Emerging Public Health Threats and Emergency Response Coalition, someone who was never vaccinated for and then exposed to measles has 72 hours to receive a vaccine.
The church, founded by science fiction writer L Ron Hubbard in 1953, did not respond to requests for comment. "But because it curtails civil liberties, most public health officials are very wary to utilize it". Authorities in the eastern Caribbean island have quarantined the ship after discovering a confirmed case of measles aboard.
