1. Immunocompetent Organs in Teleosts 2. Innate/Natural Resistance and Non-lymphoid Defence Mechanisms in Fish 3. Phagocytosis in Teleosts 4. Specific Defence Mechanisms of Fish: The Basis of Antibody Production and Cell-mediated Immune Response 5. Antigens and Antibodies 6. Complement System of Fish 7.Cytokines of Fish 8.The Immunological Defence Mechanisms of Fish Against Bacteria and Viruses 9. The Immunological Defence Mechanisms of Fish Against Fungal Infections 10. Immune Mechanisms of Shellfish 11. Monoclonal Antibody in Fish Health 12. Principles of Serological Techniques in Disease Diagnosis 13. Adjuvants in Fish Health 14. Advances in Fish Vaccine 15. Nutrition and Immunity 16. Probiotics in Disease Resistance 17. Ecotoxicants and Fish Immune System