Immunology is the study of the immune system, which protects the body from infections and diseases. As a course, it explores the components, functions, and responses of the immune system at the cellular and molecular levels. Students learn about the innate and adaptive immune systems, how immune cells recognize and eliminate pathogens, and the mechanisms of immune memory that provide long-term protection. The course covers immunological disorders, including autoimmune diseases, allergies, and immunodeficiencies, as well as the role of immunology in medicine, such as vaccines, transplantation, and cancer immunotherapy. Laboratory techniques, including serological tests, flow cytometry, and molecular methods, are often introduced to help students understand how immunological research is conducted. Immunology is an interdisciplinary field, integrating knowledge from biology, microbiology, genetics, and biochemistry, making it essential for medical, pharmaceutical, and research careers.