A new study says that heat exchangers can act as Legionella reservoirs, according to an article on the Becker's Infection Control and Clinical Quality website.
The study, published in Infection Control & Hospital Epidemiology, said heat exchangers installed by hospitals to conserve energy can promote growth of Legionella pneumophila in their hot water systems.
The researchers suggested performing an infection risk assessment on energy recovery devices in hot water systems.
"Because these units can act as incubators for pathogens in hot water systems, the operation and maintenance of heat exchanges need to be reviewed to minimize these risks and prevent future outbreaks," said Michele Prevost, PhD, the study's principal investigator.
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