European Immunology

Immune System

The immune system is a complex network of organs, tissues, and cells that work together to defend the body against infections and diseases. It comprises innate immunity, which provides immediate defence through barriers and cells like neutrophils and macrophages, and adaptive immunity, which involves T and B lymphocytes that provide specific responses and memory against pathogens. Key organs include lymph nodes, spleen, thymus, and bone marrow, which support immune cell development, maturation, and coordination. The immune system's ability to recognize and respond to foreign antigens while maintaining tolerance to self is crucial for health and disease prevention.