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Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

T Lymphocyte, illustration

T Lymphocyte, illustration

T Lymphocyte, illustration

T Lymphocyte, illustration

T Lymphocyte, illustration

Monocyte white blood cell, illustration

Macrophage white blood cell, illustration

Macrophage white blood cell, illustration

Eosinophil white blood cell, illustration

Basophil white blood cell, illustration

Monocyte white blood cell, illustration

Neutrophil white blood cell, illustration

White blood cell, illustration

White blood cell, illustration

Basophil white blood cell, illustration

Neutrophil white blood cell, illustration

Eosinophil white blood cell, illustration

Eosinophil white blood cell, illustration

Eosinophil white blood cell, illustration

Basophil white blood cell, illustration

Monocyte white blood cell, illustration

Neutrophil white blood cell, illustration

Immune system, conceptual illustration

Immune system, conceptual illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

White blood cells, illustration

Macrophage white blood cell, illustration

Macrophage white blood cell, illustration

White blood cells, illustration

Macrophage white blood cell, illustration

Destruction of white blood cell, illustration

Destruction of white blood cell, illustration

White blood cell and proteins, illustration

White blood cell and proteins, illustration

White blood cell and proteins, illustration

Destruction of leukaemia blood cell, illustration

Destruction of leukaemia blood cell, illustration

Macrophage white blood cell, illustration

Dendritic cell, illustration

Natural killer cell, illustration

Leukocyte white blood cell, illustration

White blood cells and proteins, illustration

White blood cells and proteins, illustration

White blood cells and proteins, illustration

White blood cells and proteins, illustration

Destruction of leukaemia blood cell, illustration

Destruction of leukaemia blood cell, illustration

Destruction of leukaemia blood cell, illustration

Macrophage capturing bacteria, illustration

Dendritic cell and lymphocytes, illustration

Dendritic cell and red blood cells, illustration

Lymphocytes and red blood cells, illustration

Lymphocytes attacking a cancer cell, illustration

White blood cell, artwork

T lymphocyte and cancer cell

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Interaction between virus and dendritic cell, illustration

Dendritic cell activating a t-cell, illustration

Macrophage, illustration

Macrophage, illustration

Blood cells in solution, illustration

Blood cells with circulating tumor cells, illustration

Neutrophil white blood cell, illustration

Neutrophil white blood cell, illustration

Neutrophil white blood cell, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Macrophage, illustration

Langerhans cell, illustration

Langerhans cell, illustration

Basophil white blood cell, illustration

Blood cells with circulating tumor cells, illustration

Monocytes and red blood cells, illustration

Dendritic cell presenting antigen to T cell, illustration

Interaction between virus and dendritic cell, illustration

Interaction between virus and dendritic cell, illustration

Interaction between virus and dendritic cell, illustration

Interaction between virus and dendritic cell, illustration

Macrophage, illustration

White blood cells and red blood cells, illustration

Basophil and red blood cell, illustration

Basophil and red blood cell, illustration

Blood cells, artwork

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Basophil white and red blood cell, illustration

Basophil white and red blood cell, illustration

Basophil white and red blood cell, illustration

Basophil white and red blood cell, illustration

Basophil white and red blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Lymphocyte white blood cell, illustration

Cancer cell and T cells, illustration

Cancer cell and T cells, illustration

Cancer cell and T cells, illustration

Cancer cell and T cells, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia white blood cell with mitochondria, illustration

Leukaemia blood cell, illustration

Leukaemia blood cell, illustration

Leukaemia blood cell, illustration

Leukaemia blood cell, illustration

Basophil white blood cell, illustration

Basophil white blood cell, illustration

T-lymphocytes and cancer cells, artwork

T cell attacking cancer cell, illustration

T cell attacking cancer cell, illustration

Blood cells, illustration

Blood cells, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Leukocyte traversing a blood vessel, illustration

T-cells attacking a cancer cell, illustration

Cancer cell and T cell, illustration

Blood cells, artwork

T cell attacking cancer cell, illustration

White blood cells and antibodies, illustration

Lymphocyte, illustration

White blood cell, illustration

Mechanisms of immune defence against viruses, illustration

Blood flow, illustration

T- and B-lymphocyte, illustration

T- and B-lymphocyte, illustration

Blood flow, illustration

Dendritic cells, illustration

Blood cells with IgG antibodies and bacteria, illustration

Leucocyte, illustration

Leucocyte, illustration

Dendritic cell, illustration

Dendritic cell, illustration

Dendritic cell, illustration

Lymphocytes and cancer cell

Lymphocytes and cancer cell

Lymphocytes, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Cancer cell and T cell, illustration

Macrophage engulfing red blood cell, illustration

Illustration of a leucocyte and antibodies

Illustration of a leucocyte and antibodies

Illustration of a cloud of antibodies

Illustration of a leucocyte and antibodies

Lymphocytes and red blood cells, illustration

Lymphocytes and red blood cells, illustration

Dendritic cell, artwork

Blood vessel with blood cells, illustration

Monocyte and lymphocyte white blood cells, illustration

Monocyte and lymphocyte white blood cells, illustration

Monocyte and lymphocyte white blood cells, illustration

Monocyte and lymphocyte white blood cells, illustration

Macrophage, illustration

Macrophage, illustration

Hypodermic needle and blood, illustration

Hypodermic needle and blood, illustration

Hypodermic needle and blood, illustration

Plasma cell releasing IgG antibodies, illustration

Cross-section of a blood vessel, illustration

Cross-section of a blood vessel, illustration

Cross-section of a blood vessel, illustration

Red blood cells

Red blood cells

Red blood cells

Red blood cells

Red blood cells

Monocyte white blood cell, illustration

Red blood cell structure, illustration

Red blood cell structure, illustration

Red blood cell structure, illustration

Blood cells, illustration

Leukaemia, illustration

Leukaemia, illustration

Red and white blood cells, illustration

Structure of a tuberculous granuloma, illustration

Blood cells in a blood vessel with bacteria, illustration