1. Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
2. Women’s Health Research Institute, B.C. Women’s Hospital, Vancouver, British Columbia, Canada
3. Department of Microbiology and Immunology, Faculty of Science, University of British Columbia, Vancouver, British Columbia, Canada
4. Department of Obstetrics and Gynaecology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
5. Centre de Recherche du CHU Sainte-Justine, Quebec, Canada
6. School of Population and Public Health, Faculty of Medicine, University of British Columbia, British Columbia, Canada
7. Agriculture and Agri-Food Canada, Saskatoon, Saskatchewan, Canada