1. The expression of leucocyte differentiation antigens in the feline immune system 2. Feline CD4 3. Feline CD4: structure and possible role in feline immunodeficiency virus 4. The feline major histocompatibility complex 5. The feline T cell receptor B gene 6. Detection of feline cytokine receptor mRNA transcripts 7. Purification and characterization of feline lgM and lgA isotopes and three subclasses of lgG 8. Feline immunodeficiency virus infection: a clinical and pathological perspective 9. Effect of FIV infection on the peripheral immune system 10. Functional abnoramlities in-the immune system of FIV-infected cats 11. Immunoglobin changes associated with feline immunodeficiency virus infections 12. Mitogen responses and cytokine production in FIV infection 13. Feline immunodeficiency virus and cell topism 14. The genomic organization of feline immunodeficiency virus 15. Genetic variation in feline immunodeficiency virus 16. Vaccination against FIV 17. B cell epitope mapping of feline immunodeficiency virus envelop glucoproteins 18. Locations of epitopes on the core protein p24 of feline immunodifiency virus 19. Cytotoxic T lymphocyte responses to feline virus 20. FeLV-FAIDS immunodeficiency syndrome Appendices