1. Virology; Department of Microbiology, South Eastern Area Laboratory Services (SEALS); Prince of Wales Hospital; Sydney; New South Wales; Australia
2. NSW Organ and Tissue Donation Service; Sydney; New South Wales; Australia
3. Divisions of Infectious Diseases and Organ Transplantation; Northwestern University Feinberg School of Medicine; Chicago; Illinois; USA
4. The Kirby Institute (formerly National Centre in HIV Epidemiology and Clinical Research), UNSW; Darlinghurst; Sydney; Australia
5. Australian Red Cross Blood Service; Carlton; Victoria; Australia