1. The American Red Cross, Biomedical Services Washington DC USA
2. Department of Pathology, Microbiology and Immunology Vanderbilt University Nashville Tennessee USA
3. Division of Healthcare Quality Promotion National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention Atlanta Georgia USA
4. Baylor College of Medicine Houston Texas USA
5. Department of Medicine Uniformed Services University Bethesda Maryland USA
6. Blood Assurance Chattanooga Tennessee USA
7. Dartmouth Hitchcock Medical Center Lebanon New Hampshire USA
8. Division of Chemical, Biological, Radiological and Nuclear Countermeasures, Biomedical Advanced Research and Development Authority Administration for Strategic Preparedness and Response, US Department of Health and Human Services Washington DC USA
9. Yale University School of Medicine New Haven Connecticut USA
10. National Weather Service Boston Massachusetts USA
11. Canadian Blood Services Vancouver British Columbia Canada
12. Department of Pathology, Feinberg School of Medicine Northwestern University Chicago Illinois USA