Norwegian Cruise Line has temporarily closed hot tubs and heated whirlpools aboard the Norwegian Prima after three former passengers were diagnosed with Legionnaires’ disease following their travels.
The passengers had sailed aboard the ship during voyages in May and July 2026, although it has not been established where they were exposed to the bacteria.
Norwegian Cruise Line said it was working with the US Centres for Disease Control and Prevention (CDC) to investigate the cases and had contacted affected guests and crew in line with CDC guidance.
A company spokesperson said: “While it has not been confirmed if the exposure occurred on the ship or elsewhere, we are working closely with the Centres for Disease Control and Prevention (CDC) to investigate these cases, as well as mitigate any further incidents.”
Water tests return negative
Tests carried out on water fixtures aboard the Norwegian Prima have so far returned negative results, according to the cruise line.
Testing remains ongoing, and the hot tubs and heated whirlpools will remain closed as a precaution. The ship has continued operating its scheduled voyages.
Norwegian Cruise Line said it had also increased its routine sanitation procedures while the investigation continues.
“The health and safety of our guests and crew is our top priority,” an NCL spokesperson said, adding that the company operates to high public health and sanitation standards.
What is Legionnaires’ disease?
Legionnaires’ disease is a potentially serious form of pneumonia caused by Legionella bacteria.
People can become infected by breathing in mist or tiny droplets of water containing the bacteria. Potential sources can include hot tubs, showers, taps and other water systems.
Symptoms can include a cough, fever, headaches, muscle aches, shortness of breath and, in some cases, confusion, diarrhoea or nausea.
There is currently no confirmation that any of the three passengers contracted Legionnaires’ disease aboard Norwegian Prima, and investigations into the source of their exposure remain ongoing.
