The body's ability to recognise and remember specific pathogens and mount an immune response against them, achieved through exposure to pathogens or vaccination
Part of the innate immune response, migrate towards sites of infection or tissue damage, primarily involved in phagocytosis and release toxic substances to eliminate pathogens
A type of white blood cell involved in the adaptive immune response, originating from the bone marrow and producing antibodies against pathogens such as bacteria, viruses, and toxins
Also known as CD4+ T cells, assist other immune cells like B cells and cytotoxic T cells, recognise antigens presented by antigen-presenting cells, release cytokines to stimulate immune response
Part of the innate immune system, involved in the inflammatory response by releasing histamine and other chemicals, defend against parasites by releasing substances that can destroy them
A type of white blood cell, also known as T cells, playing a central role in the immune system's response to pathogens such as viruses and bacteria, produced in the bone marrow and mature in the thymus gland