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    Leucocyte cell capturing harmful bacteria, computer illustration. — Stock Photo
    Leucocyte cell capturing harmful bacteria, computer illustration.
    Lymph nodes of male shoulder, computer illustration. — Stock Photo
    Lymph nodes of male shoulder, computer illustration.
    Transparent obese female body with visible lymphatic system, digital illustration. — Stock Photo
    Transparent obese female body with visible lymphatic system, digital illustration.
    Megakaryocyte in human blood, computer illustration. — Stock Photo
    Megakaryocyte in human blood, computer illustration.
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    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.
    Lymphatic system of male upper body, computer illustration. — Stock Photo
    Lymphatic system of male upper body, computer illustration.
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    Illustration of cancerous tumour in female spleen. — Stock Photo
    Illustration of cancerous tumour in female spleen.
    Female body showing skeleton and lymphatic system, digital illustration. — Stock Photo
    Female body showing skeleton and lymphatic system, digital illustration.
    Lymphocytes attacking viruses — Stock Photo
    Lymphocytes attacking viruses
    Abstract female model with visible skeleton and lymphatic system, computer illustration. — Stock Photo
    Abstract female model with visible skeleton and lymphatic system, computer illustration.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Lymphocyte white blood cell in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cell in human lymphatic system, digital illustration.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    White blood cell and proteins, digital illustration. — Stock Photo
    White blood cell and proteins, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Illustration of antibodies (blue) attaching to a viral (purple) infected cell. Antibodies bind to specific antigens, for instance viral proteins displayed on the surface of infected cells, marking them for destruction by phagocyte immune cells. — Stock Photo
    Illustration of antibodies (blue) attaching to a viral (purple) infected cell. Antibodies bind to specific antigens, for instance viral proteins displayed on the surface of infected cells, marking them for destruction by phagocyte immune cells.
    T-cells (turquoise) binding to cancer cells (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) binding to cancer cells (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
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    Red blood cells and leukocytes, computer illustration. — Stock Photo
    Red blood cells and leukocytes, computer illustration.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Illustration of spleen in male body silhouette on white background. — Stock Photo
    Illustration of spleen in male body silhouette on white background.
    Food to boost immune system on black background — Stock Photo
    Food to boost immune system on black background
    Transparent male silhouette with colored spleen, computer illustration. — Stock Photo
    Transparent male silhouette with colored spleen, computer illustration.
    Light micrograph of a section through follicle from a thyroid gland affected by Grave's disease. — Stock Photo
    Light micrograph of a section through follicle from a thyroid gland affected by Grave's disease.
    Digital illustration of senior man anatomy showing lymphatic system. — Stock Photo
    Digital illustration of senior man anatomy showing lymphatic system.
    Abdominal lymph nodes in male body, computer illustration. — Stock Photo
    Abdominal lymph nodes in male body, computer illustration.
    Spleen cancer in female body, computer illustration. — Stock Photo
    Spleen cancer in female body, computer illustration.
    Female thoracic lymph nodes, computer illustration. — Stock Photo
    Female thoracic lymph nodes, computer illustration.
    Transparent female body with visible lymphatic system, digital illustration. — Stock Photo
    Transparent female body with visible lymphatic system, digital illustration.
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    Illustration of antibodies responding to an infection with the SARS-CoV-2 coronavirus (centre). The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia and be fatal in some cases — Stock Photo
    Illustration of antibodies responding to an infection with the SARS-CoV-2 coronavirus (centre). The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia and be fatal in some cases
    AIDS virus and antibodies — Stock Photo
    AIDS virus and antibodies
    RNA vaccine, conceptual illustration. molecule of RNA (ribonucleic acid, blue helix) is being injected at right. The RNA is taken up and read by body cells, causing them to produce copies of viral proteins (red) — Stock Photo
    RNA vaccine, conceptual illustration. molecule of RNA (ribonucleic acid, blue helix) is being injected at right. The RNA is taken up and read by body cells, causing them to produce copies of viral proteins (red)
    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.
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Female thoracic lymph nodes, computer illustration. — Stock Photo
    Female thoracic lymph nodes, computer illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Digital molecular model of secondary structure of immunoglobulin G antibodies. — Stock Photo
    Digital molecular model of secondary structure of immunoglobulin G antibodies.
    Illustration of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red) — Stock Photo
    Illustration of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red)
    Digital molecular model of secondary structure of immunoglobulin G antibodies. — Stock Photo
    Digital molecular model of secondary structure of immunoglobulin G antibodies.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Female upper body lymphatic system, computer illustration. — Stock Photo
    Female upper body lymphatic system, computer illustration.
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, 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 white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Abstract male body with visible skeleton and lymphatic system, computer illustration. — Stock Photo
    Abstract male body with visible skeleton and lymphatic system, computer illustration.
    Digital illustration of transparent elderly man body with visible orange-colored spleen. — Stock Photo
    Digital illustration of transparent elderly man body with visible orange-colored spleen.
    Digital illustration of lymph nodes of throat of senior man. — Stock Photo
    Digital illustration of lymph nodes of throat of senior man.
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte. — Stock Photo
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte.
    Anatomical male model showing lymphatic system, digital illustration. — Stock Photo
    Anatomical male model showing lymphatic system, digital illustration.
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample. — Stock Photo
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample.
    Illustration of a dendritic cell, a type of white blood cell that is a component of the body's immune system — Stock Photo
    Illustration of a dendritic cell, a type of white blood cell that is a component of the body's immune system
    Illustration of human silhouette with inflamed spleen. — Stock Photo
    Illustration of human silhouette with inflamed spleen.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.