1Enter-net Hub, Health Protection Agency, Department of Gastrointestinal Infections, Centre for Infections, London, United Kingdom.
2Salmonella Zentrale, AGES/Med Graz, Graz, Austria.
3Unit of Gastrointestinal Infections, Statens Seruminstitut, Copenhagen, Denmark.
4Robert Koch-institut, Berich Werningerode, Werningerode/Harz, Germany.
5University College Hospital Galway, Ireland
6Istituto Superiore di Sanita, Laboratory of Medical Bacteriology & Mycology, Rome, Italy.
7Laboratoire National de Santé, Luxembourg, Luxembourg
8National Institute for Public Health and the Environment, Department of Infectious Disease Epidemiology, Bilthoven, the Netherlands.
9Scottish Salmonella Reference Laboratory, Department of Bacteriology, Stobhill Hospital, Glasgow, Scotland.
10Instituto de Salud Carlos III, Centro Nacional de Microbiologia, Sección de Enterobacterias, Majadahonda, Spain.