Veterinary Immunology and Serology

INTRODUCTION- IMMUNOLOGY

• Immunology is a branch of science that deals with the body’s resistance to infection or the of altered reactivity of the body following an exposure to a foreign substance or infection.
• Immunity means the body’s ability to resist infection or in other words the state of the body which learns from the experience of past infection(s), how to deal more efficiently with subsequent infections.
• The immune system of an individual is consists of its cells and molecules responsible for the immunity.
• Immune Response is the reaction of the body following an exposure to foreign antigen resulting in the formation of antibodies and lymphokines.