1. National Reference Laboratory of Gastrointestinal Infections, Department of Infectious Diseases, National Institute of Health, Lisbon, Portugal.
2. Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal.
3. Food Microbiology Laboratory, Reference Unit, Department of Food and Nutrition, National Institute of Health, Lisbon, Portugal.
4. Food Microbiology Laboratory, Reference Unit, Department of Food and Nutrition, National Institute of Health, Porto, Portugal.