title: Nosocomial outbreak of extensively drug-resistant Pseudomonas aeruginosa associated with aromatherapy.
abstract: An increase of extensively drug-resistant Pseudomonas aeruginosa (XDR-PA) in various clinical specimens among intensive care unit patients (n = 7) initiated an outbreak investigation consisting of patient data analyses, control of adherence to infection control guidelines, microbiologic surveys, and molecular-based studies. XDR-PA was detected in a jointly used aroma-oil nursing bottle for aromatherapy. We implemented the restriction of oil sharing among patients. Hence, the outbreak was controlled successfully.
authors.affiliation: Department of Hygiene, Microbiology and Social Medicine, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria. Electronic address: astrid.mayr@i-med.ac.at.
authors.forename: Astrid
authors.initials: A
authors.lastname: Mayr
authors.affiliation: Department of Hygiene, Microbiology and Social Medicine, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Guido
authors.initials: G
authors.lastname: Hinterberger
authors.affiliation: Department of General and Surgical Intensive Care Medicine, University Hospital of Innsbruck, Innsbruck, Austria.
authors.forename: Ingo H
authors.initials: IH
authors.lastname: Lorenz
authors.affiliation: Department of Hygiene, Microbiology and Social Medicine, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Peter
authors.initials: P
authors.lastname: Kreidl
authors.affiliation: Department of Hygiene, Microbiology and Social Medicine, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Mutschlechner
authors.affiliation: Department of Hygiene, Microbiology and Social Medicine, Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Cornelia
authors.initials: C
authors.lastname: Lass-Flörl
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019341:Aromatherapy / Q000009:adverse effects*; D003428:Cross Infection / Q000453:epidemiology* / Q000382:microbiology; D004196:Disease Outbreaks; D018562:Disease Transmission, Infectious / Q000517:prevention & control; D004340:Drug Contamination; D024901:Drug Resistance, Multiple, Bacterial; D005260:Female; D006801:Humans; D017053:Infection Control / Q000379:methods; D008297:Male; D008875:Middle Aged; D011552:Pseudomonas Infections / Q000453:epidemiology* / Q000382:microbiology; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000302:isolation & purification*
keywords: Aromatherapy; Cross-transmission; Extensive drug resistance; Intensive care unit; Pseudomonas aeruginosa