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    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel. — Stock Photo
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel.
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    Illustration of pink stem cell on blue background. — Stock Photo
    Illustration of pink stem cell on blue background.
    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.
    Female scientist in clean suit researching coronavirus in laboratory — Stock Photo
    Female scientist in clean suit researching coronavirus in laboratory
    Scientist holding multi-well plate with growth medium. — Stock Photo
    Scientist holding multi-well plate with growth medium.
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Tumor, illustration — Stock Photo
    Tumor, illustration
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    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.
    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.
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Nanobot in bloodstream with red erythrocytes, digital illustration. — Stock Photo
    Nanobot in bloodstream with red erythrocytes, digital illustration.
    Myelinated nerve fibres — Stock Photo
    Myelinated nerve fibres
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Cancer cell with T-cell, — Stock Photo
    Cancer cell with T-cell,
    Insulin binding to insulin receptor — Stock Photo
    Insulin binding to insulin receptor
    Illustration of leucocyte cell surrounded by antibodies on white background. — Stock Photo
    Illustration of leucocyte cell surrounded by antibodies on white background.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Lung cancer cell — Stock Photo
    Lung cancer cell
    Coloured scanning electron micrograph (SEM) of squamous epithelial cells on the skin surface. — Stock Photo
    Coloured scanning electron micrograph (SEM) of squamous epithelial cells on the skin surface.
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Sickle cell anaemia — Stock Photo
    Sickle cell anaemia
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    Round red cells on plain background, digital illustration. — Stock Photo
    Round red cells on plain background, digital illustration.
    HIV virus particles — Stock Photo
    HIV virus particles
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    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.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM). — Stock Photo
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM).
    Human white blood cell — Stock Photo
    Human white blood cell
    Male sex cell — Stock Photo
    Male sex cell
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph. — Stock Photo
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). — Stock Photo
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM).
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Destruction of cancer cell — Stock Photo
    Destruction of cancer cell
    Illustration of a 8 cell stage egg on black background. — Stock Photo
    Illustration of a 8 cell stage egg on black background.
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM). — Stock Photo
    Trachea (wind pipe) lining, coloured scanning electron micrograph (SEM).
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure 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.
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Female reproductive system — Stock Photo
    Female reproductive system
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.