An NCL cruiseship has failed a health inspection in the US after flies were found in catering areas.

The Centers for Disease Control and Prevention (CDCP) also found that the response to acute gastroenteritis (AGE) among the crew was inadequate on the 146,000-gt Norwegian Breakaway (built 2013).

The ship was awarded a score of 84 in the 10 March check, where 86 is a pass.

It was rated as "not satisfactory".

The report said that a food worker had experienced an onset of AGE symptoms and immediately reported to the medical area.

A non-food worker close contact was first interviewed within an hour.

The close contact was followed up again on the following two days, which was approximately 34 hours after the ill crew member reported to medical.

There was no 48-hour follow-up for the asymptomatic close contact.

A week later, a non-food worker reported AGE symptoms.

It was documented that the crew member had a single cabin. There were no close contacts listed.

However, there was no statement that the crew member did not have any significant others.

In addition, three small flies were noted at two grills, and another three were seen at two others.

Another small fly was found around the drink mixer containers on the front bar.

NCL was recommended to tighten up interviewing and checks on crew.

It told TradeWinds: "We are committed to the highest health standards and have stringent protocols in place for the sanitation of all our vessels.

"Immediate corrective action is taken whenever necessary.”