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    Normal red blood cells — Stock Photo
    Normal red blood cells
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    HIV viruses infecting T-lymphocyte cell — Stock Photo
    HIV viruses infecting T-lymphocyte cell
    Illustration of human multi-cellular embryo. — Stock Photo
    Illustration of human multi-cellular embryo.
    Rift Valley fever virus particle on white background, digital illustration. — Stock Photo
    Rift Valley fever virus particle on white background, digital illustration.
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Pathological phosphorylation of red-orange Tau proteins by blue-purple kinases affecting nerve cells in Alzheimers disease, illustration. — Stock Photo
    Pathological phosphorylation of red-orange Tau proteins by blue-purple kinases affecting nerve cells in Alzheimers disease, illustration.
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is blue. Mitochondria (cyan)) in the cell's cytoplasm produce energy for the cell. Lysosomes (red) contain enzymes for digesting foreign particles. M — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is blue. Mitochondria (cyan)) in the cell's cytoplasm produce energy for the cell. Lysosomes (red) contain enzymes for digesting foreign particles. M
    Enterovirus with attached integrin molecules — Stock Photo
    Enterovirus with attached integrin molecules
    Digital illustration of nerve neuron cell. — Stock Photo
    Digital illustration of nerve neuron cell.
    Activated platelets in blood vessel — Stock Photo
    Activated platelets in blood vessel
    Colored illustration of green human nerve cell. — Stock Photo
    Colored illustration of green human nerve cell.
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response. — Stock Photo
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response.
    Differential interference contrast light micrograph of different species of fossil unicellular radiolarians (protozoa). — Stock Photo
    Differential interference contrast light micrograph of different species of fossil unicellular radiolarians (protozoa).
    HIV viruses infecting T-lymphocytes — Stock Photo
    HIV viruses infecting T-lymphocytes
    Adenocarcinoma of the thyroid gland — Stock Photo
    Adenocarcinoma of the thyroid gland
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Osteosarcoma cancer cell — Stock Photo
    Osteosarcoma cancer cell
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Immune system T-lymphocytes cells binding antigen, digital illustration. — Stock Photo
    Immune system T-lymphocytes cells binding antigen, digital illustration.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Close-up of hands of female scientist working in laboratory with pipette and flask. — Stock Photo
    Close-up of hands of female scientist working in laboratory with pipette and flask.
    Petri dishes with colorful liquids for microbiology research. — Stock Photo
    Petri dishes with colorful liquids for microbiology research.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Magnified digital illustration of antibody cell. — Stock Photo
    Magnified digital illustration of antibody cell.
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Cancer cell anatomy — Stock Photo
    Cancer cell anatomy
    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.
    Cancer cells dividing, digital illustration. — Stock Photo
    Cancer cells dividing, digital illustration.
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain.
    Malaria infection infecting red blood cells, digital illustration. — Stock Photo
    Malaria infection infecting red blood cells, digital illustration.
    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.
    Red blood cells and blood vessel — Stock Photo
    Red blood cells and blood vessel
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Human sperm cells — Stock Photo
    Human sperm cells
    Genetic engineering, conceptual illustration — Stock Photo
    Genetic engineering, conceptual illustration
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration.
    3d rendered abstract illustration of pink nerve cell. — Stock Photo
    3d rendered abstract illustration of pink nerve cell.
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Cancer cell, computer illustration — Stock Photo
    Cancer cell, computer illustration
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    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.
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Bacterial infection in the blood stream — Stock Photo
    Bacterial infection in the blood stream
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration. — Stock Photo
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration.
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration. — Stock Photo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration.
    Illustration of CAR DNA modified T-cell immunotherapy process for cancer treatment. — Stock Photo
    Illustration of CAR DNA modified T-cell immunotherapy process for cancer treatment.