(11:34 a.m. EST) -- For the second time this year, a Celebrity Cruises ship has failed a Centers for Disease Control and Prevention inspection. Celebrity Century earned a score of 78 less than one month after fleetmate Celebrity Summit scored an 81. Crewmembers working while ill, food not discarded after spending too much time outside the fridge, and contaminated food debris all contributed to Century's failure.

The CDC's surprise ship cleanliness exam is conducted twice a year, with an 86 considered passing.

In a detailed report, compiled after the February 8 surprise inspection of Celebrity Century and posted online this week, CDC inspectors documented several instances of crewmembers sick with acute gastroenteritis (AGE) continuing to work. At least two food workers were included in the list: a cook who worked almost an hour before reporting to the medical center and a cook who worked a little more than two hours after the onset of his symptoms. An ill hair stylist also put in a full day of work before reporting to the medical center. Finally, a sick gift shop attendant worked before reporting to the medical center and then continued to work while he was supposedly in isolation.

The report recommended that employees with AGE symptoms be restricted from work and should report to the medical center as soon as the first symptoms appear.

Inspectors also found that crewmembers routinely did not follow the time control plans determining how long food can remain out for before it must be either stored at correct temperatures or discarded. The report also found that the toilet facility intended for use by galley personnel was locked when the galley was in service, and, when opened by inspectors, it had no supply of toilet paper.

Additional violations were cited for large pieces of food debris found inside the wash, rinse and final rinse tanks of the dishwasher; dishwashing machines being run despite the temperature being too low and being told by an inspector to stop; and at least one incident of clean plates being stored under a soiled drop-off counter full of soiled dishes and covered in liquid waste.

This is the second time Celebrity Century has failed a CDC inspection since it launched in 1996. The last time it failed was November 2004. Cruise Critic has reached out to Celebrity Cruises by e-mail for comment.

--by Dori Saltzman, News Editor