THE company behind tram construction work at the Queen's Medical Centre said they were not aware of any "direct link" between their work and a potentially deadly fungal bug found in the hospital's ventilation system.
The bug, known as aspergillus was found on the children's cancer ward at the Queen's Medical Centre last week.
Checks found that the source of the contamination was the air-conditioning system leading to the playroom on ward E39.
Checks were carried out after two children on the ward started to display symptoms of a fungal infection – one of whom is now at home, and the other remains in hospital.
In order to prevent contamination, nine children on ward E39 at the hospital were evacuated to E38.
A statement released by tram builders Taylor Woodrow Alstom, said: "We have not been made aware of any suggestion that the reported ward closure at the QMC is directly linked to the tram construction project.
"And we are therefore unable to comment further.
"Aspergillus has been mention in reports and we would say that transmission of such microbes can be through fungal spores, water droplets, skin scales, mechanical action such as cleaning, demolition, construction or coughing and sneezing."
Nottingham University Hospitals Trust said yesterday that ward E39 remained closed and a date for its reopening had not yet been set.
In 2008, beds were closed because the aspergillus bug was suspected to be on ward E37 of the Queen's Medical Centre.