Fig. 1

Epidemiological curve representing the seven patients (A-G) with NDM-5-EC and their occupation of the affected rooms within the outbreak period from May 2018 to December 2019. Only first detections are shown. Additionally, sampling dates for the environmental isolates (denoted in blue) and infection control events are shown (*: disinfection of toilet bowl with bleach and UV light, increased frequency of cleaning and disinfection of patient-near surfaces, #: change of toilet rubber cuff, °: weekly application of bleach in toilet trap water until negative cultures, §: hot water pressure washing and change of movable parts)