The purpose of this course is to teach the fish disease and nutrition immunity. Course contents include the impact of disease on aquaculture systems, important bacterial pathogens of fish, important viral pathogens of fish, antibody-based diagnostics, molecular-based diagnostics, overview of the immune response of fish, host pathogen interactions modulators of the immune response, methods of measuring the immune response of fish, experimental; design disease control in an aquaculture setting, vaccine strategies and vaccine development, the role of fish nutrition in fish health functional feeds, pre and probiotics, and functional feeds immunostimulants.