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461 results

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    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    T-lymphocytes attacking a cancer cell — Stock Photo
    T-lymphocytes attacking a cancer cell
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    White blood cell structure — Stock Photo
    White blood cell structure
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Plasma cell and antibodies — Stock Photo
    Plasma cell and antibodies
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    White blood cells — Stock Photo
    White blood cells
    Human immunodeficiency virus structure — Stock Photo
    Human immunodeficiency virus structure
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Immunodeficiency virus infection in blood stream — Stock Photo
    Immunodeficiency virus infection in blood stream
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Cancerous white blood cell in leukaemia — Stock Photo
    Cancerous white blood cell in leukaemia
    Lymphocyte white blood cells — Stock Photo
    Lymphocyte white blood cells
    White blood cell structure — Stock Photo
    White blood cell structure
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Influenza virus particles in blood stream — Stock Photo
    Influenza virus particles in blood stream
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    T-cell receptor-MHC-antigen complex — Stock Photo
    T-cell receptor-MHC-antigen complex
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    Lymphocyte white blood cell — Stock Photo
    Lymphocyte white blood cell
    Lymphocytes attacking viruses — Stock Photo
    Lymphocytes attacking viruses
    Activated human macrophage — Stock Photo
    Activated human macrophage
    White blood cells — Stock Photo
    White blood cells
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system