"We know the [portable air-conditioning units] are making a difference,"
she said.
"The longer term strategy will obviously be getting air flow more permanently into the rooms within D-block, but that then has the implications of needing to close wards or transition patients in and out of wards while works are done,"
Ms Lieutier said.
"We have upgraded [air-conditioning] significantly over the course of the last number of years and will continue to do so,"