1. Laboratory of Microbiology and PathologyQueensland Health Brisbane QLD
2. AIDS and Communicable Diseases BranchCommonwealth Department of Human Services and Health Canberra ACT
3. Institute of Clinical Pathology and Medical ResearchWestmead Hospital Sydney NSW
4. State Health Laboratory Services, Health Department of Western Australia Perth WA
5. Institute of Medical and Veterinary Science Adelaide SA
6. Victorian Infectious Diseases InstituteFairfield Hospital Melbourne VIC