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    Side view full body of soldier in camouflage outfit standing on knee before military service with small girl — Stock Photo
    Side view full body of soldier in camouflage outfit standing on knee before military service with small girl
    White blood cell structure — Stock Photo
    White blood cell structure
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Front view mid section of judoka standing on gym mats, tying up the black belt of white judogi. — Stock Photo
    Front view mid section of judoka standing on gym mats, tying up the black belt of white judogi.
    Transparent female body silhouette with yellow colored spleen, digital illustration. — Stock Photo
    Transparent female body silhouette with yellow colored spleen, digital illustration.
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Colored scanning electron micrograph of protective dendritic cell of immune system. — Stock Photo
    Colored scanning electron micrograph of protective dendritic cell of immune system.
    Front view close up of a focused teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air. — Stock Photo
    Front view close up of a focused teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air.
    Mid section of karate player performing karate stance in fitness studio — Stock Photo
    Mid section of karate player performing karate stance in fitness studio
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Illustration of female silhouette with painful spleen. — Stock Photo
    Illustration of female silhouette with painful spleen.
    Group of friends playing basketball. — Stock Photo
    Group of friends playing basketball.
    Digital illustration of senior man anatomy showing spleen tumour. — Stock Photo
    Digital illustration of senior man anatomy showing spleen tumour.
    Lymphocyte white blood cell in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cell in human lymphatic system, digital illustration.
    Mid section of boxer wearing black strap on wrist in fitness studio — Stock Photo
    Mid section of boxer wearing black strap on wrist in fitness studio
    Illustration of senior man silhouette with visible spleen. — Stock Photo
    Illustration of senior man silhouette with visible spleen.
    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.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Lymphocyte white blood cell in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cell in human lymphatic system, 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.
    Abstract male silhouette with visible spleen, computer illustration. — Stock Photo
    Abstract male silhouette with visible spleen, computer illustration.
    Lymphocytes attacking viruses — Stock Photo
    Lymphocytes attacking viruses
    Transparent female body silhouette with yellow colored spleen, digital illustration. — Stock Photo
    Transparent female body silhouette with yellow colored spleen, digital illustration.
    Confident female boxer performing boxing stance in fitness studio — Stock Photo
    Confident female boxer performing boxing stance in fitness studio
    Portrait of confident female boxer performing boxing stance in boxing ring — Stock Photo
    Portrait of confident female boxer performing boxing stance in boxing ring
    Portrait of female boxer with boxing gloves in boxing ring at fitness studio — Stock Photo
    Portrait of female boxer with boxing gloves in boxing ring at fitness studio
    Illustration of spleen in silhouette of female body. — Stock Photo
    Illustration of spleen in silhouette of female body.
    Karate fighter practicing with wooden dummy in fitness studio. — Stock Photo
    Karate fighter practicing with wooden dummy in fitness studio.
    T-cell receptor-MHC-antigen complexes — Stock Photo
    T-cell receptor-MHC-antigen complexes
    Lymphatic system with lymphatic nodes — Stock Photo
    Lymphatic system with lymphatic nodes
    Lymphocyte white blood cells in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cells in human lymphatic system, digital 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.
    Side view of two focused teenage multi-ethnic female judokas wearing blue judogi, kneeling on mats in the gym, looking at each other before judo training. — Stock Photo
    Side view of two focused teenage multi-ethnic female judokas wearing blue judogi, kneeling on mats in the gym, looking at each other before judo training.
    Immune response to cancer — Stock Photo
    Immune response to cancer
    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)
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Colored scanning electron micrograph of protective dendritic cell of immune system. — Stock Photo
    Colored scanning electron micrograph of protective dendritic cell of immune system.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    Digital illustration of pink antibodies attacking blue virus particle. — Stock Photo
    Digital illustration of pink antibodies attacking blue virus particle.
    Front view close up of a teenage mixed race female judoka, sitting on gym mats, wrapping red tape around her wrist. — Stock Photo
    Front view close up of a teenage mixed race female judoka, sitting on gym mats, wrapping red tape around her wrist.
    Man practicing with kung fu fan in fitness studio. — Stock Photo
    Man practicing with kung fu fan in fitness studio.
    Front view close up of a focused teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, punching the air. — Stock Photo
    Front view close up of a focused teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, punching the air.
    Front view close up of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, stretching her leg up and kicking the air. — Stock Photo
    Front view close up of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, stretching her leg up and kicking the air.
    Portrait of karate player performing karate stance in fitness studio — Stock Photo
    Portrait of karate player performing karate stance in fitness studio
    Mid section of karate player performing karate stance in fitness studio — Stock Photo
    Mid section of karate player performing karate stance in fitness studio
    Illustration of transparent gray silhouette of male body with colored spleen. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored spleen.
    Brown bears sparing for salmon — Stock Photo
    Brown bears sparing for salmon
    Kung fu fighter practicing martial arts in fitness studio. — Stock Photo
    Kung fu fighter practicing martial arts in fitness studio.
    T-lymphocytes attacking a cancer cell — Stock Photo
    T-lymphocytes attacking a cancer cell
    Side view of a teenage mixed race female judo player wearing blue judogi, practicing with a judo jo stick during a training with a male coach in a gym. — Stock Photo
    Side view of a teenage mixed race female judo player wearing blue judogi, practicing with a judo jo stick during a training with a male coach in a gym.
    Portrait of boxer performing boxing stance in fitness studio — Stock Photo
    Portrait of boxer performing boxing stance in fitness studio
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    Karate fighter practicing with sai weapon in fitness studio. — Stock Photo
    Karate fighter practicing with sai weapon in fitness studio.
    Blue senior female silhouette showing spleen in body. — Stock Photo
    Blue senior female silhouette showing spleen in body.
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.