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    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    White blood cell structure — Stock Photo
    White blood cell structure
    Nanobot attacking virus, conceptual digital illustration. — Stock Photo
    Nanobot attacking virus, conceptual digital illustration.
    Karate fighter practicing with sai weapon in fitness studio. — Stock Photo
    Karate fighter practicing with sai weapon in fitness studio.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    Karate fighter practicing with wooden dummy in fitness studio. — Stock Photo
    Karate fighter practicing with wooden dummy 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.
    Karate player in prayer pose in fitness studio — Stock Photo
    Karate player in prayer pose in fitness studio
    Side view of a teenage mixed race male judoka wearing white judogi, kneeling and bowing on mats in the gym before judo training. — Stock Photo
    Side view of a teenage mixed race male judoka wearing white judogi, kneeling and bowing on mats in the gym before judo training.
    Confident female boxer performing boxing stance in fitness studio — Stock Photo
    Confident female boxer performing boxing stance in fitness studio
    Front view high angle of a teenage mixed race female judoka, sitting on gym mats, stretching her leg before judo training. — Stock Photo
    Front view high angle of a teenage mixed race female judoka, sitting on gym mats, stretching her leg before judo training.
    Blue senior female silhouette showing spleen in body. — Stock Photo
    Blue senior female silhouette showing spleen in body.
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Rear view of a teenage mixed race female judoka wearing blue judogi, practicing with a judo jo stick during a training with a coach in a gym. — Stock Photo
    Rear view of a teenage mixed race female judoka wearing blue judogi, practicing with a judo jo stick during a training with a coach in a gym.
    Mid section of karate player performing karate stance in fitness studio — Stock Photo
    Mid section of karate player performing karate stance in fitness studio
    Chateau Gaillard; Les Andelys, Normandy, France — Stock Photo
    Chateau Gaillard; Les Andelys, Normandy, France
    Portrait of confident boxer wearing black strap on wrist in fitness studio — Stock Photo
    Portrait of confident boxer wearing black strap on wrist in fitness studio
    Portrait of female boxer wearing red strap on wrist in fitness studio — Stock Photo
    Portrait of female boxer wearing red strap on wrist in fitness studio
    Front view mid section of judoka wearing blue judogi, holding wooden judo jo stick, standing in the gym during a judo training. — Stock Photo
    Front view mid section of judoka wearing blue judogi, holding wooden judo jo stick, standing in the gym during a judo training.
    Sandbags in rows at the water's edge to prevent erosion of the beach — Stock Photo
    Sandbags in rows at the water's edge to prevent erosion of the beach
    Front view of a middle aged Caucasian male instructor giving self defence training in a boxing gym demonstrating a hold on a lying young mixed race man, while another young man looks on — Stock Photo
    Front view of a middle aged Caucasian male instructor giving self defence training in a boxing gym demonstrating a hold on a lying young mixed race man, while another young man looks on
    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.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Boxer with gumshield performing boxing stance in fitness studio — Stock Photo
    Boxer with gumshield performing boxing stance in fitness studio
    Blue senior female silhouette showing spleen in body. — Stock Photo
    Blue senior female silhouette showing spleen in body.
    Front view of a teenage mixed race female judoka wearing blue judogi, kneeling and bowing on mats in the gym before judo training. — Stock Photo
    Front view of a teenage mixed race female judoka wearing blue judogi, kneeling and bowing on mats in the gym before judo training.
    Judoka doing push ups on gym mats — Stock Photo
    Judoka doing push ups on gym mats
    Mid section of female boxer with boxing gloves in boxing ring at fitness studio — Stock Photo
    Mid section of female boxer with boxing gloves in boxing ring at fitness studio
    Mid section of boxer performing boxing stance in fitness studio — Stock Photo
    Mid section of boxer performing boxing stance in fitness studio
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Illustration of transparent blue silhouette of male body with colored spleen. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored spleen.
    Asteroid defense missile launched at asteroid — Stock Photo
    Asteroid defense missile launched at asteroid
    Kung fu fighter practicing with long pole in fitness studio. — Stock Photo
    Kung fu fighter practicing with long pole in fitness studio.
    Antibodies attacking virus particles, computer illustration. — Stock Photo
    Antibodies attacking virus particles, computer 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.
    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.
    Front view of a confident teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym, looking straight into a camera, before judo training. — Stock Photo
    Front view of a confident teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym, looking straight into a camera, before judo training.
    Karate fighter practicing with long pole in fitness studio. — Stock Photo
    Karate fighter practicing with long pole in fitness studio.
    Boxer wearing grappling gloves in fitness studio — Stock Photo
    Boxer wearing grappling gloves in fitness studio
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Karate fighter practicing martial arts in fitness studio. — Stock Photo
    Karate fighter practicing martial arts in fitness studio.
    Kung fu fighter training martial arts in fitness studio. — Stock Photo
    Kung fu fighter training martial arts in fitness studio.
    Karate fighter practicing with long pole in fitness studio. — Stock Photo
    Karate fighter practicing with long pole in fitness studio.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    White blood cell structure — Stock Photo
    White blood cell structure
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    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.
    Young adult karate player performing karate stance in fitness studio — Stock Photo
    Young adult karate player performing karate stance in fitness studio
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Boxer performing boxing stance in fitness studio — Stock Photo
    Boxer performing boxing stance in fitness studio
    Front view of a teenage mixed race female judoka, sitting on gym mats, stretching her leg before judo training, her female colleague exercising in the background. — Stock Photo
    Front view of a teenage mixed race female judoka, sitting on gym mats, stretching her leg before judo training, her female colleague exercising in the background.
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Kung fu fighter practicing with long pole in fitness studio. — Stock Photo
    Kung fu fighter practicing with long pole in fitness studio.
    Karate fighter practicing with long pole in fitness studio. — Stock Photo
    Karate fighter practicing with long pole in fitness studio.
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.