1. Center for Biologics Evaluation and Research, Food and Drug Administration; Silver Spring MD USA
2. Epidemiology and Surveillance; Canadian Blood Services; Ottawa ON USA
3. Blood Bank; Hospital Sirio Libanes; São Paulo Brazil
4. Transmissible Diseases Department; American Red Cross Holland Laboratory; Rockville MD USA
5. Medical Affairs, Microbiology; Héma-Quebec; Montreal Quebec Canada
6. Abbott Diagnostics; Lake Forest IL USA
7. Roche Molecular Systems Inc; Pleasanton CA USA
8. Transfusion Safety Laboratory; Catalonian Blood Bank (Banc de Sang i Teixits de Catalunya); Barcelona Spain
9. Department of Pathology; Johns Hopkins University School of Medicine; Baltimore MD USA