1. Oniris, INRAE (National Research Institute for Agriculture, Food and the Environment), BIOEPAR (Biology, Epidemiology and Risk Analysis in Animal Health), Nantes, France
2. Oniris, CHUV (University Veterinary Hospital), Nantes, France
3. Bacterial Toxins, Institut Pasteur, Paris, Cedex France
4. Réseau Cristal, Segré, France
5. Réseau Cristal, Cerizay, France
6. California Animal Health and Food Safety Laboratory System, San Bernardino Laboratory, School of Veterinary Medicine, University of California–Davis, Davis, CA, USA