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    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    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
    Transparent female body with visible lymphatic system, digital illustration. — Stock Photo
    Transparent female body with visible lymphatic system, digital illustration.
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Abdominal lymph nodes in male body, computer illustration. — Stock Photo
    Abdominal lymph nodes in male body, computer 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.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Illustration of leucocyte cell surrounded by antibodies on black background. — Stock Photo
    Illustration of leucocyte cell surrounded by antibodies on black background.
    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.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Mast cell releasing histamine during allergic response, digital illustration. — Stock Photo
    Mast cell releasing histamine during allergic response, 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.
    Lymph nodes of male pelvis, computer illustration. — Stock Photo
    Lymph nodes of male pelvis, computer illustration.
    Calcitonin peptide bound to receptor, illustration. — Stock Photo
    Calcitonin peptide bound to receptor, illustration.
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration — Stock Photo
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration
    Female thoracic lymph nodes, computer illustration. — Stock Photo
    Female thoracic lymph nodes, computer illustration.
    Female thoracic lymph nodes, computer illustration. — Stock Photo
    Female thoracic lymph nodes, computer illustration.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    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
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Lymphocyte cell structure and shape — Stock Photo
    Lymphocyte cell structure and shape
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor. — Stock Photo
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor.
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration.
    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.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Female body showing skeleton and lymphatic system, digital illustration. — Stock Photo
    Female body showing skeleton and lymphatic system, digital illustration.
    Illustration of transparent gray silhouette of male body with colored spleen. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored spleen.
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Three dimensional medical illustration of male reproductive system with veins and arteries — Stock Photo
    Three dimensional medical illustration of male reproductive system with veins and arteries
    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.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Female upper body lymphatic system, computer illustration. — Stock Photo
    Female upper body lymphatic system, computer illustration.
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Digital illustration of HIV retrovirus of lentivirus kind, causing of collapse of immune system and AIDS. — Stock Photo
    Digital illustration of HIV retrovirus of lentivirus kind, causing of collapse of immune system and AIDS.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Female body showing skeleton and lymphatic system, digital illustration. — Stock Photo
    Female body showing skeleton and lymphatic system, digital illustration.
    Lymphatic system of male upper body, computer illustration. — Stock Photo
    Lymphatic system of male upper body, computer illustration.
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    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
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Empty subway of Milan during coronavirus quarantine,COVID-19 lifestyle, Duomo subway station, Lombardy, Italy, Europe — Stock Photo
    Empty subway of Milan during coronavirus quarantine,COVID-19 lifestyle, Duomo subway station, Lombardy, Italy, Europe
    Tween boy getting temperature taken with an ear thermometer. — Stock Photo
    Tween boy getting temperature taken with an ear thermometer.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Medical illustration of arteries, veins and lymphatic system with heart — Stock Photo
    Medical illustration of arteries, veins and lymphatic system with heart
    Abstract female model with visible skeleton and lymphatic system, computer illustration. — Stock Photo
    Abstract female model with visible skeleton and lymphatic system, computer illustration.
    Spleen cancer in male body, conceptual computer illustration. — Stock Photo
    Spleen cancer in male body, conceptual computer illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    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
    Lymphocyte white blood cells — Stock Photo
    Lymphocyte white blood cells
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration — Stock Photo
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Male silhouette with visible back bones, computer illustration. — Stock Photo
    Male silhouette with visible back bones, computer illustration.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Female anatomical body with visible lymphatic system, computer illustration. — Stock Photo
    Female anatomical body with visible lymphatic system, computer illustration.
    Dendritic cell presenting antigen to T cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses. They recognise incoming viruses and present their antigens to T cells. — Stock Photo
    Dendritic cell presenting antigen to T cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses. They recognise incoming viruses and present their antigens to T cells.
    Spleen cancer in male body, conceptual computer illustration. — Stock Photo
    Spleen cancer in male body, conceptual computer illustration.