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    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    Monocyte in human blood, computer illustration. — Stock Photo
    Monocyte in human blood, computer illustration.
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Illustration of silhouette of pregnant woman with visible uterus and blastocyst. — Stock Photo
    Illustration of silhouette of pregnant woman with visible uterus and blastocyst.
    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.
    3d illustration of white blood cells leukocytes in human body. — Stock Photo
    3d illustration of white blood cells leukocytes in human body.
    Rift Valley fever virus particle on white background, digital illustration. — Stock Photo
    Rift Valley fever virus particle on white background, digital illustration.
    Digital illustration of colorful Polio virus particle. — Stock Photo
    Digital illustration of colorful Polio virus particle.
    Cancer cells and white blood cells — Stock Photo
    Cancer cells and white blood cells
    Man with bicycle and woman with phone — Stock Photo
    Man with bicycle and woman with phone
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Doctor separating donor blood in blood bags into component parts. — Stock Photo
    Doctor separating donor blood in blood bags into component parts.
    Computer illustration of white adipose (fat) cells, lying in a matrix of collagen. Adipose tissue stores energy and helps insulate our bodies as well as cushioning the organs. — Stock Photo
    Computer illustration of white adipose (fat) cells, lying in a matrix of collagen. Adipose tissue stores energy and helps insulate our bodies as well as cushioning the organs.
    Brothers and sisters holding puppies on sofa — Stock Photo
    Brothers and sisters holding puppies on sofa
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Trypanosoma brucei protozoan — Stock Photo
    Trypanosoma brucei protozoan
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Eosinophil white blood cell, digital illustration. — Stock Photo
    Eosinophil white blood cell, digital illustration.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Low angle view of businessman in white shirt standing at stairs passage and talking on smartphone over business buildings glass facade — Stock Photo
    Low angle view of businessman in white shirt standing at stairs passage and talking on smartphone over business buildings glass facade
    Senior women with digital tablet shopping in home decor shop — Stock Photo
    Senior women with digital tablet shopping in home decor shop
    Nanomachines working on red blood cells, digital illustration. — Stock Photo
    Nanomachines working on red blood cells, digital illustration.
    Woman with cap lying down — Stock Photo
    Woman with cap lying down
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    Illustration of leucocyte cell surrounded by antibodies on white background. — Stock Photo
    Illustration of leucocyte cell surrounded by antibodies on white background.
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Boy doing his lessons at home — Stock Photo
    Boy doing his lessons at home
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    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.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Bone marrow cell — Stock Photo
    Bone marrow cell
    Woman with afro hair and face mask talking on her smartphone — Stock Photo
    Woman with afro hair and face mask talking on her smartphone
    From above smartphone on wooden table with laptop prohibition sign. — Stock Photo
    From above smartphone on wooden table with laptop prohibition sign.
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration. — Stock Photo
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration.
    People behind barrier tape talking on cell phone display — Stock Photo
    People behind barrier tape talking on cell phone display
    White blood cell, digital illustration. — Stock Photo
    White blood cell, digital illustration.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Computer Illustration of a fat cell structure — Stock Photo
    Computer Illustration of a fat cell structure
    Side view of businessman carrying laptop and using smartphone over business building facade on backdrop — Stock Photo
    Side view of businessman carrying laptop and using smartphone over business building facade on backdrop
    White blood cell structure — Stock Photo
    White blood cell structure
    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.
    Human white blood cell — Stock Photo
    Human white blood cell
    Nerves synapse, biological digital illustration. — Stock Photo
    Nerves synapse, biological digital illustration.
    Abstract red colored cancer cell on white background, digital illustration. — Stock Photo
    Abstract red colored cancer cell on white background, digital illustration.
    Human white blood cell — Stock Photo
    Human white blood cell
    Portrait of bearded businessman holding laptop and cell while smiling away — Stock Photo
    Portrait of bearded businessman holding laptop and cell while smiling away
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration. — Stock Photo
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration.
    Portrait woman with colorful cap — Stock Photo
    Portrait woman with colorful cap
    Human x chromosomes — Stock Photo
    Human x chromosomes