Over the past week, cases of the stomach flu have been confirmed at The Haven Community aged care facility in Mount Austin.

It is unclear how many residents or staff members have been affected by the outbreak.

"I can confirm Public Health has been notified of gastro in this facility," said Tracey Oakman from the Murrumbidgee Public Health Network.

Ms Oakman also confirmed that other facilities around the city have registered similar bouts of illness over the past week.

"There are a number of institutions across MLHD experiencing gastro outbreaks," Ms Oakman said.

"The main cause of these [outbreaks] is Norovirus."

Ms Oakman did not indicate when family members of residents at The Haven could expect the all-clear to visit, but that all efforts have been expended in the hopes of staving the spread.

"We work with facilities to support them in minimising further transmission of the gastro to other residents, staff and visitors," she said.

With the busy Christmas season having now arrived, Ms Oakman confirmed the need for visitors to aged care facilities to remain vigilant to prevent the spread of the infection to those who may be more vulnerable.

The MLHD recommends thorough washing of hands with soap under a 10-second stream of water, especially after using the toilet, changing nappies or before preparing food.

"There is no specific treatment for viral gastroenteritis, except rest and drinking plenty of fluids," Ms Oakman said.

"Most people will recover without complications. However, viral gastroenteritis can be serious for infants, people with suppressed immune systems and the elderly."