In a letter given to passengers when they boarded the P&O cruise liner Oriana ten days ago, the medical team admits that some passengers on a previous sailing had suffered from norovirus symptoms.
The company arranged for the liner to undergo an "extensive disinfection" while she was in Southampton. Some 300 passengers contracted norovirus during their trip.
P & O have confirmed 300 of the 1,800 passengers on board the Oriana cruise ship were affected by the vomiting bug norovirus. Passengers left the ship this morning after it arrived in Southampton after a tour of the Baltics. The cruise company had said only nine people fell ill.
Passengers have disembarked from the cruise ship Oriana after it returned to its home port of Southampton this morning. Some passengers on the liner contracted the Norovirus winter vomiting bug while on a ten day cruise to the Baltics. There have been claims that as many as 300 passengers fell ill.
The cruise ship Oriana has returned to its home port of Southampton. Some passengers on the liner contracted the Norovirus winter vomiting bug while on a ten day cruise to the Baltics.
While there have been claims that hundreds of passengers have been affected, on Thursday P&O Cruises which owns the liner said fewer than ten cases have actually been confirmed.
Daybreak's Health Editor, Dr Hilary Jones, has told viewers how to stop the spread of the winter vomiting bug, the norovirus.
Health measures have been put in place on the cruise ship Oriana to prevent the spread of norovirus.
Suffering passengers have been asked to isolate themselves in their rooms and not leave the boat for day trips.
A spokeswoman for P&O Cruises said that six people on board have active symptoms today, but she was not able to confirm how many people have been affected in total.
Any medical charges incurred as a direct result of the outbreak will be covered by the company, the spokeswoman confirmed.
The Health Protection Agency (HPA) has warned that for every confirmed case of the stomach bug, there are likely to be a further 288 unreported sufferers.
There have been 2,630 confirmed cases so far this season, meaning that the real number could be 757,440.
A spokesperson for the HPA said: "Laboratory confirmed reports represent only a small proportion of the actual amount of norovirus activity in the community, because the vast majority of affected people do not access health care services as a result of their illness."
VIDEO: Over 150 passengers on the Oriana are reported to have been struck down by a vomiting bug. The P and O cruise ship is due to dock in Southampton on Friday. Fred and Stacey link to Mel Bloor.