The surgical ward at the Royal Belfast Hospital for Sick Children was not carrying out adequate checks to protect patients from the potentially deadly pseudomonas bug earlier this year, according to an article on the Belfast Telegraph website.
Inspectors from the Regulation and Quality Improvement Authority carried out a three-day unannounced inspection of Barbour Ward and the emergency department at the children's hospital in May.
The Belfast Health and Social Care Trust was ordered to implement a water testing regime at in the ward to ensure the safety of some of the sickest children in Northern Ireland.
It comes after an outbreak of pseudomonas aeruginosa at hospitals here in December 2011 and the beginning of 2012 which led to the deaths of four babies.