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    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    T-cells (turquoise) surrounding a tumour (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus — Stock Photo
    T-cells (turquoise) surrounding a tumour (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    3d illustration of blood plasma and components of blood flowing from artery. — Stock Photo
    3d illustration of blood plasma and components of blood flowing from artery.
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses — Stock Photo
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Blood cells, light micrograph. — Stock Photo
    Blood cells, light micrograph.
    White blood cells — Stock Photo
    White blood cells
    White blood cells with red blood cells, computer illustration. — Stock Photo
    White blood cells with red blood cells, computer illustration.
    Digital illustration of abnormal white blood cells B-lymphocytes while hairy cell leukaemia. — Stock Photo
    Digital illustration of abnormal white blood cells B-lymphocytes while hairy cell leukaemia.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Blood droplet containing cells, conceptual illustration of hemophilia. — Stock Photo
    Blood droplet containing cells, conceptual illustration of hemophilia.
    Close-up of a macrophage, illustration. — Stock Photo
    Close-up of a macrophage, illustration.
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes. — Stock Photo
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Immune system T-lymphocytes cells binding antigen, digital illustration. — Stock Photo
    Immune system T-lymphocytes cells binding antigen, digital illustration.
    Red blood cell infected with Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Red blood cell infected with Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    B-lymphocyte cells, computer illustration — Stock Photo
    B-lymphocyte cells, computer illustration
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes. — Stock Photo
    Dendritic cell, computer illustration. A dendritic cell is a type of white blood cell. It is an antigen-presenting cell (APC), which presents antigens to T lymphocytes.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Hypodermic needle and blood, computer illustration — Stock Photo
    Hypodermic needle and blood, computer illustration
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    White blood cell — Stock Photo
    White blood cell
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Blood vessel with blood cells — Stock Photo
    Blood vessel with blood cells
    White blood cells and proteins, digital illustration. — Stock Photo
    White blood cells and proteins, digital illustration.
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    White blood cell — Stock Photo
    White blood cell
    3d illustration of white blood cells leukocytes secreting antibodies in human body. — Stock Photo
    3d illustration of white blood cells leukocytes secreting antibodies in human body.
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    3d illustration of cancer cells attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cells attacked and killed by lymphocytes.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    B-lymphocyte cells, computer illustration — Stock Photo
    B-lymphocyte cells, computer illustration
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    Cells attacked by virus — Stock Photo
    Cells attacked by virus
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Immune response to cancer — Stock Photo
    Immune response to cancer
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration. — Stock Photo
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration.