cells of the immune system. white blood cells or leukocytes

cell immune white blood leukocyte eosinophil neutrophil basophil macrophage fibroblast dendritic tcell nkcell bcell system immunity health human medical set transparent realistic cells background vector diagram disease infection medicine science lymphocyte antibody response antigen structure biology inflammation care immunology virus healthcare helper anatomy collection natural killer adaptive innate lymphoid system leukocytes cell background