Brigitte A.G.L. van Cleef , Dominique L. Monnet, Andreas Voss, Karina Krziwanek, Franz Allerberger, Marc Struelens, Helena Zemlickova, Robert L. Skov, Jaana Vuopio-Varkila, Christiane Cuny, Alexander W. Friedrich, Iris Spiliopoulou, Judit Pászti, Hjordis Hardardottir, Angela Rossney, Angelo Pan, Annalisa Pantosti, Michael Borg, Hajo Grundmann, Manica Mueller-Premru, Barbro Olsson-Liljequist, Andreas Widmer, Stephan Harbarth, Alexander Schweiger, Serhat Unal, and Jan A.J.W. Kluytmans

Author affiliations: Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (B.A.G.L. van Cleef, H. Grundmann); VU University Medical Centre, Amsterdam, the Netherlands (B.A.G.L. van Cleef, J.A.J.W. Kluytmans); European Centre for Disease Prevention and Control, Stockholm, Sweden (D.L. Monnet); Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands (A. Voss); Elisabethinen Hospital, Linz, Austria (K. Krziwanek); Österreichische Agentur für Gesundheit und Ernährungssicherheit, Wien, Austria (F. Allerberger); Université Libre de Bruxelles Hôpital Erasme, Brussels, Belgium (M. Struelens); Statni Zdravotni Ustav, Praha, Czech Republic (H. Zemlickova); Statens Serum Institut, Copenhagen, Denmark (R.L. Skov); National Public Health Institute, Helsinki, Finland (J. Vuopio-Varkila); Robert Koch Institute, Wernigerode, Germany (C. Cuny); Institute of Hygiene of the University Hospital, Münster, Germany (A.W. Friedrich); University of Patras, Patras, Greece (I. Spiliopoulou); National Center for Epidemiology, Budapest, Hungary (J. Pászti); Landspitali University Hospital, Reykjavik, Iceland (H. Hardardottir); National MRSA Reference Laboratory, St. James's Hospital, Dublin, Ireland (A. Rossney); Istituti Ospitalieri di Cremona, Cremona, Italy (A. Pan); Istituto Superiore di Sanità, Rome, Italy (A. Pantosti); Mater Dei Hospital, Msida, Malta (M. Borg); Medical Faculty, Ljubljana, Slovenia (M. Mueller-Premru); Swedish Institute for Infectious Disease Control, Solna, Sweden (B. Olsson-Liljequist); University Hospital, Basel, Switzerland (A. Widmer); Hôpitaux Universitaires de Genève, Geneva, Switzerland (S. Harbarth); University Hospital Zürich, Zürich, Switzerland (A. Schweiger); Hacettepe University, Ankara, Turkey (S. Unal); Amphia Hospital, Breda, the Netherlands (J.A.J.W. Kluytmans)