1 Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, 6020, Innsbruck, Austria. hygiene-bakteriologie@i-med.ac.at.
2 Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41, 6020, Innsbruck, Austria.