abstract representation of immune cells

immune system lymphocytes abstract illustration defense mechanism body 039 protection antibodies cellular response innate immunity adaptive vaccination cells lymphoid organs spleen bone marrow lymph nodes function pathogen elimination chronic infections autoimmune diseases immunodeficiency disorders infectious viral bacterial fungal parasitic cancer treatment chemotherapy radiation therapy immunotherapy tumor microenvironment checkpoint inhibitors cart cell inhibition monoclonal strategies vaccine development antigen presentation major histocompatibility complex cytokines chemokines adhesion molecules