1 Microbiological Food Safety and Food-Borne Diseases Unit, Department of Food Safety, Nutrition and Veterinary Public Health, National Reference Centre for Botulism, Istituto Superiore di Sanità, Rome, Italy.
2 Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, United States.
3 Botulism Reference Service for Canada, Microbiology Research Division, Bureau of Microbial Hazards, Food Directorate, Health Products and Food Branch, Ottawa, ON, Canada.