1. Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Montréal, Canada.
2. The National Bone Marrow Transplant Centre, UR12ES02, Faculty of Medicine, Tunis, Tunisia.
3. Microbion Corporation, Boseman, Montana.
4. Meakins Christie Laboratories, Department of Medicine, Research Institute of the McGill University Health Centre, Montréal, Canada.