Affiliation: | 1. Canadian Blood Services Ottawa, Ontario, Canada;2. Héma-Québec Montreal, Quebec, Canada;3. Australian Red Cross Blood Service Perth, Western Australia, Australia;4. Institut de Veille Sanitaire, Paris, France;5. Établissement Français du Sang Tours, Indre-et-Loire, France;6. Health Protection Agency, Centre for Infections, London, UK;7. NHS Blood and Transplant, London, UK;8. American Red Cross Holland Laboratory, Rockville, MD, USA |