1. Nosocomial Infections
Robert Koch-Institute
38855 Wernigerode, Germany
2. Limbach Laboratory
69126 Heidelberg, Germany
3. Evangelische Kliniken Bonn
Waldkrankenhaus
53177 Bonn, Germany
4. Department of Bacteriology-Virology
INSERM U914
Hôpital de Bicêtre
94275 Le Kremlin-Bicêtre, France