1. Department of Microbiology & Immunology, University of Western Ontario and Canadian Research and Development Centre for Probiotics, Lawson Health Research Institute, London, Ontario, Canada
2. Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
3. Department of Medical Laboratory Science, School of Basic Medical Sciences, College of Medicine, University of Benin, Benin City, Nigeria