387,237 images pour simSearch:679-05798925,k

  • 679-05798925

    Macrophage bactéries attaquantes, oeuvre

    Premium Libres de Droits

  • 679-05798924

    Macrophage bactéries attaquantes, oeuvre

    Premium Libres de Droits

  • 679-05798923

    Macrophage bactéries attaquantes, oeuvre

    Premium Libres de Droits

  • 679-05798922

    Macrophage bactéries attaquantes, oeuvre

    Premium Libres de Droits

  • 679-05798921

    Macrophage bactéries attaquantes, oeuvre

    Premium Libres de Droits

  • 679-09244828

    Neutrophil (left) and monocyte (right) white blood cell in blood smear, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system. Monocytes are the largest white blood cells; they engulf and digest invading bacteria and cell debris.

    Premium Libres de Droits

  • 679-09244827

    Neutrophil (right) and monocyte (left) white blood cell in blood smear, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system. Monocytes are the largest white blood cells; they engulf and digest invading bacteria and cell debris.

    Premium Libres de Droits

  • 679-09244826

    Neutrophil (left) and monocyte (right) white blood cell in blood smear, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system. Monocytes are the largest white blood cells; they engulf and digest invading bacteria and cell debris.

    Premium Libres de Droits

  • 679-09040635

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (pink) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-09040634

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (blue) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-09040633

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (blue) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-09040632

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (blue) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-09040631

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (pink) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-09040630

    Macrophage engulfing TB bacteria. Computer illustration of a macrophage white blood cell (pink) engulfing tuberculosis (Mycobacterium tuberculosis) bacteria (orange). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris.

    Premium Libres de Droits

  • 679-07763648

    MHC protein complexed with flu virus. Molecular model showing human class II MHC (major histocompatibility complex) protein HLA-DR1 complexed with an influenza (flu) virus peptide. MHC class II molecules are cell surface molecules that are part of the immune system. They are found only on antigen-presenting cells and lymphocytes, where they present antigens to evoke the production of antibodies.

    Premium Libres de Droits

  • 679-07150608

    MHC protein complexed with flu virus. Molecular model showing human class II MHC (major histocompatibility complex) protein HLA-DR1 complexed with an influenza (flu) virus peptide. MHC class II molecules are cell surface molecules that are part of the immune system. They are found only on antigen-presenting cells and lymphocytes, where they present antigens to evoke the production of antibodies.

    Premium Libres de Droits

  • 679-09180366

    Neutrophil white blood cell, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09180365

    Neutrophil white blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09180364

    Neutrophil white blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09200590

    Neutrophil white blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09200589

    Neutrophil white blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09244825

    Neutrophil white blood cell and red blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09244824

    Neutrophil white blood cell and red blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09244823

    Neutrophil white blood cell and red blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-09244822

    Neutrophil white blood cell and red blood cells, computer illustration. Neutrophils are the most abundant white blood cell and are part of the body's immune system.

    Premium Libres de Droits

  • 679-08971720

    Macrophage white blood cell capturing bacteria, illustration.

    Premium Libres de Droits

  • 679-09021822

    Macrophage, computer illustration.

    Premium Libres de Droits

  • 679-09021821

    Macrophage, computer illustration.

    Premium Libres de Droits

  • 679-09040452

    Dendritic cells, computer illustration. Dendritic cells, a type of white blood cell, are a type of antigen presenting cell (APC) and are found in the body's tissues. They play a role in the body's immune system by recognising and phagocytosing (engulfing and destroying) pathogens. They then present the digested parts (antigens) of the phagocytosed pathogens to other immune system cells. The long p

    Premium Libres de Droits

  • 679-09040451

    Dendritic cells, computer illustration. Dendritic cells, a type of white blood cell, are a type of antigen presenting cell (APC) and are found in the body's tissues. They play a role in the body's immune system by recognising and phagocytosing (engulfing and destroying) pathogens. They then present the digested parts (antigens) of the phagocytosed pathogens to other immune system cells. The long p

    Premium Libres de Droits

  • 679-08519334

    Macrophage and Borrelia bacteria, illustration. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris. Here, the macrophage (pink) is engulfing the bacteria (dark blue), a process known as phagocytosis. The bacteria will then be destroyed. Several diseases are caused by various types of Borrelia bacteria, including Lyme disease an

    Premium Libres de Droits

  • 679-08519333

    Macrophage and Borrelia bacteria, illustration. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris. Here, the macrophage (pink) is engulfing the bacteria (dark blue), a process known as phagocytosis. The bacteria will then be destroyed. Several diseases are caused by various types of Borrelia bacteria, including Lyme disease an

    Premium Libres de Droits

  • 679-09180363

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09180362

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09180361

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09244951

    Eosinophilia, blood smear with numerous eosinophils, computer illustration. Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during haematopoiesis in the bone marrow befor

    Premium Libres de Droits

  • 679-09244950

    Eosinophilia, blood smear with numerous eosinophils, computer illustration. Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during haematopoiesis in the bone marrow befor

    Premium Libres de Droits

  • 679-09244949

    Eosinophilia, blood smear with numerous eosinophils, computer illustration. Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during haematopoiesis in the bone marrow befor

    Premium Libres de Droits

  • 679-09244948

    Eosinophilia, blood smear with numerous eosinophils, computer illustration. Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during haematopoiesis in the bone marrow befor

    Premium Libres de Droits

  • 679-09244947

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09244946

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09244945

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-09244944

    Eosinophil white blood cells. Computer illustration of eosinophil white blood cells, showing their lobed nuclei (purple). Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop

    Premium Libres de Droits

  • 679-08971725

    Macrophage white blood cell, illustration.

    Premium Libres de Droits

  • 679-08971724

    Macrophage white blood cell, illustration.

    Premium Libres de Droits

  • 679-08971723

    Macrophage white blood cell, illustration.

    Premium Libres de Droits

  • 679-08971722

    Macrophage white blood cell, illustration.

    Premium Libres de Droits

  • 679-08971721

    Macrophage white blood cell, illustration.

    Premium Libres de Droits

  • 679-07608044

    Artwork of lymphocytes attacking a cancer cell.

    Premium Libres de Droits

  • 679-07607985

    Artwork of HIV (human immunodeficiency virus).

    Premium Libres de Droits

  • 679-07607984

    Artwork of HIV (human immunodeficiency virus).

    Premium Libres de Droits

  • 679-07764612

    HIV (human immunodeficiency virus) infection, computer artwork.

    Premium Libres de Droits

  • 679-07764611

    HIV (human immunodeficiency virus) infection, computer artwork.

    Premium Libres de Droits

  • 679-07764610

    HIV (human immunodeficiency virus) infection, computer artwork.

    Premium Libres de Droits

  • 679-07764609

    HIV (human immunodeficiency virus) infection, computer artwork.

    Premium Libres de Droits

  • 679-07764608

    HIV (human immunodeficiency virus) infection, computer artwork.

    Premium Libres de Droits

  • 679-07763782

    Flu virus surface protein and antibody. Molecular model of the neuraminidase glycoprotein enzyme found on the surface of the influenza (flu) virus, in complex with the antigen-binding fragment (Fab) of monoclonal antibody NC41. The presence of neuraminidase on the virus surface enables the virus to be released from the host cell. It is also a target for monoclonal antibody drugs that bind to it (s

    Premium Libres de Droits

  • 679-07150742

    Flu virus surface protein and antibody. Molecular model of the neuraminidase glycoprotein enzyme found on the surface of the influenza (flu) virus, in complex with the antigen-binding fragment (Fab) of monoclonal antibody NC41. The presence of neuraminidase on the virus surface enables the virus to be released from the host cell. It is also a target for monoclonal antibody drugs that bind to it (s

    Premium Libres de Droits

  • 679-09200652

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200651

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200650

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200649

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200648

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200647

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200646

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200645

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200644

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200643

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09200642

    T lymphocyte cells attacking a cancer cell, computer illustration. T lymphocytes are a type of white blood cell that recognise a specific site (antigen) on the surface of cancer cells or pathogens and bind to it. Some T lymphocytes then signal for other immune system cells to eliminate the cell. The genetic changes that cause a cell to become cancerous lead to the presentation of tumour antigens o

    Premium Libres de Droits

  • 679-09244801

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244800

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244799

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244798

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244797

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244796

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244795

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244794

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244793

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244792

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244791

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244790

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244789

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244788

    Acute lymphoblastic leukaemia bone marrow smear. Computer illustration showing abundant lymphoblast cells in human bone marrow.

    Premium Libres de Droits

  • 679-09244784

    Acute lymphoblastic leukaemia. Computer illustration showing abundant lymphoblast cells in human blood.

    Premium Libres de Droits

  • 679-09244783

    Acute lymphoblastic leukaemia. Computer illustration showing abundant lymphoblast cells in human blood.

    Premium Libres de Droits

  • 679-09244782

    Acute lymphoblastic leukaemia. Computer illustration showing abundant lymphoblast cells in human blood.

    Premium Libres de Droits

  • 679-09244776

    Acute lymphoblastic leukaemia. Computer illustration showing abundant lymphoblast cells in human blood.

    Premium Libres de Droits

  • 679-09244775

    Acute lymphoblastic leukaemia treatment concept. Computer illustration showing destruction of lymphoblast cells.

    Premium Libres de Droits

  • 679-09244774

    Acute lymphoblastic leukaemia treatment concept. Computer illustration showing destruction of lymphoblast cells.

    Premium Libres de Droits

  • 679-09244773

    Acute lymphoblastic leukaemia treatment concept. Computer illustration showing destruction of lymphoblast cells.

    Premium Libres de Droits