Occasional cases of legionella bacteria may have dropped significantly after the breakdown of Queensland Health, but positive finds have still been found in some hospitals in South Downs.
The most recent data obtained by the Warwick Daily News reveals that legionella has been found in water sources at Stanthorpe Hospital and Inglewood Hospital.
The naturally occurring bacteria can cause illness, including Legionellars' disease when it spreads into plumbing networks.
Dr Penny Hutchinson's Public Health unit director Darling Downs said there were no cases of legionella infections that had been hospitalized at any Southern Downs facilities.
"The latest round of tests has shown a reduction in the number of solutions," said Dr Hutchinson.
In the fourth quarter of last year, 12 legionella finds were reported at Inglewood Hospital, which has declined since then to one.
Two statements have been found at Stanthorpe Hospital recently, which are down from the five cases found in the third quarter of 2017.
At Warwick Hospital, many solutions were reduced from one to no.
Queensland Health undertakes quarterly mandatory tests and reports on water and quality sources in each facility.
"After each perception, an assessment is carried out to determine the level of risk of infection to patients and appropriate steps are taken to reduce this risk," said Dr Hutchinson.
"These actions could include the use of portable water chlorinator; pipe water flushing; increasing the temperature of the water to the bacteria to kill the bacteria, replacing shower heads and / or fittings and return back then. "
Dr Hutchinson said the legionella referred to a common series of bacteria that were widely distributed in the environment.