1. Division of Clinical Microbiology, Royal University Hospital & Saskatchewan Health Authority, 103 Hospital Drive, Saskatoon, Saskatchewan, S7N 0W8, Canada
2. Departments of Biochemistry, Microbiology & Immunology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
3. Departments of Pathology & Laboratory Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
4. Department of Ophthalmology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
5. University of Saskatchewan, Saskatoon, Saskatchewan, Canada
6. Clinical Microbiology, Ampath Laboratories, 166 Witch-Hazel Avenue, Technopart, Centurion, 0157, Johannesburg, South Africa