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    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Red blood cells — Stock Photo
    Red blood cells
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Illustration of red blood cells affected by sickle cell anaemia with crescent-shaped cells. — Stock Photo
    Illustration of red blood cells affected by sickle cell anaemia with crescent-shaped cells.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Digital illustration of trypanosome parasites in blood which causing Chagas disease. — Stock Photo
    Digital illustration of trypanosome parasites in blood which causing Chagas disease.
    Human white blood cell — Stock Photo
    Human white blood cell
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre. — Stock Photo
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Monocyte in human blood, computer illustration. — Stock Photo
    Monocyte in human blood, computer illustration.
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    Coloured scanning electron micrograph (SEM) of a section through a foetal vein filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a foetal vein filled with red blood cells (erythrocytes, red).
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Lymphocyte white blood cell in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cell in human lymphatic system, digital illustration.
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital 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.
    Lymphocyte white blood cell in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cell in human lymphatic system, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Red blood cells and leukocytes in cross-section of blood vessel, digital illustration. — Stock Photo
    Red blood cells and leukocytes in cross-section of blood vessel, digital illustration.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Red blood cells — Stock Photo
    Red blood cells
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Red and white blood cells aggregating — Stock Photo
    Red and white blood cells aggregating
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Blood stream and artery walls — Stock Photo
    Blood stream and artery walls
    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.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    White blood cell — Stock Photo
    White blood cell
    Sickle cell anemia — Stock Photo
    Sickle cell anemia
    Visual render of Human skin anatomy — Stock Photo
    Visual render of Human skin anatomy
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Monocyte white blood cell, digital illustration. — Stock Photo
    Monocyte white blood cell, digital illustration.
    Visual rendering of Sleeping sickness — Stock Photo
    Visual rendering of Sleeping sickness
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Red blood cells — Stock Photo
    Red blood cells
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Red blood cells in sickle cell anaemia — Stock Photo
    Red blood cells in sickle cell anaemia
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Digital illustration of hypochromic and microcytic red blood cells while iron deficiency anaemia. — Stock Photo
    Digital illustration of hypochromic and microcytic red blood cells while iron deficiency anaemia.
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration. — Stock Photo
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.