Table 4.

Measures taken to mitigate the risk of Mycobacterium chimaera infections after cardiac surgery in Veneto region

	Measures
Environmental control measures	Mycrobiological surveillance of HCUs and operating room
	Culture-negative HCUs: carry out maintenance and cleaning of the device according to the manufacturer's recommendations
	Culture-positive HCUs: remove the HCU from the operating room and/or send the device to the manufacturer for sterilization and cleaning
Clinical control measures	Enhance active case finding
	Alert clinicians for passive case findings
	Notify the confirmed or probable cases

HUC: Heater-cooler unit.