Abstract
1 Emerging Bacterial and Mycotic Diseases Branch National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333
2 Foodborne and Diarrheal Diseases Branch National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333
7 Division of Bacterial and Mycotic Diseases, and Nosocomial Pathogens Laboratory Branch. Hospital Infections Program National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333
3 National Collection of Type Cultures, Central Public Health Laboratory, London, England
4 Department of Microbiology, University of Leeds, Leeds, England
5 Department of Medical Microbiology, Banting Institute, University of Toronto, Toronto, Ontario, Canada
6 Unité des Entérobactéries, Institut Pasteur, Paris, France