1. Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA
2. Food Science Program, Chemistry Institute, University Federal of Rio de Janeiro, Rio de Janeiro, Brazil
3. National Institute of Quality Control in Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
4. Department of Food Technology, Faculty of Veterinary Medicine, Federal Fluminense University (UFF), Niterói, Brazil
5. National Reference Laboratory for Diagnosis of Enteric Bacteria, Oswaldo Cruz Institute, Rio de Janeiro, Brazil