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    Cross-section of spinal cord, light micrograph. — Stock Photo
    Cross-section of spinal cord, light micrograph.
    Computer illustration of Candida fungi (yeast). most common representatives of Candida fungi are C. albicans and C. auris with similar morphology. C. albicans is found on skin and mucous membranes of mouth, genitals, respiratory — Stock Photo
    Computer illustration of Candida fungi (yeast). most common representatives of Candida fungi are C. albicans and C. auris with similar morphology. C. albicans is found on skin and mucous membranes of mouth, genitals, respiratory
    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.
    Digital illustration of Acanthamoeba castellanii amoebas on white background. — Stock Photo
    Digital illustration of Acanthamoeba castellanii amoebas on white background.
    Pink colored Enterococcus bacteria, computer illustration. — Stock Photo
    Pink colored Enterococcus bacteria, computer illustration.
    Epidermoid carcinoma skin cancer — Stock Photo
    Epidermoid carcinoma skin cancer
    Giant cell tumour of the bone — Stock Photo
    Giant cell tumour of the bone
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Balamuthia mandrillaris amoeba organisms, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organisms, digital illustration.
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain.
    Unilocular adipose tissue — Stock Photo
    Unilocular adipose tissue
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Genetic engineering, conceptual illustration. — Stock Photo
    Genetic engineering, conceptual illustration.
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent
    Conceptual digital illustration of human blastocyst on needle tip. — Stock Photo
    Conceptual digital illustration of human blastocyst on needle tip.
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    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.
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Komodo dragon skin, coloured scanning electron micrograph (SEM). The Komodo dragon (Varanus komodoensis) has armoured scaly skin. It is the largest lizard in the world, reaching over three metres in length — Stock Photo
    Komodo dragon skin, coloured scanning electron micrograph (SEM). The Komodo dragon (Varanus komodoensis) has armoured scaly skin. It is the largest lizard in the world, reaching over three metres in length
    Illustration of human blood cells in blood stream. — Stock Photo
    Illustration of human blood cells in blood stream.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Digital illustration of nerve neurons cells. — Stock Photo
    Digital illustration of nerve neurons cells.
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Electric vehicle charging, illustration. — Stock Photo
    Electric vehicle charging, illustration.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Closeup of needle of syringe filled with vaccine from virus injected in cell on blurred background — Stock Photo
    Closeup of needle of syringe filled with vaccine from virus injected in cell on blurred background
    Broom pollen grain — Stock Photo
    Broom pollen grain
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Secondary liver cancer — Stock Photo
    Secondary liver cancer
    Measles virus particles budding from cells, digital illustration. — Stock Photo
    Measles virus particles budding from cells, digital illustration.
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    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.
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Hypodermic needle and blood, computer illustration — Stock Photo
    Hypodermic needle and blood, computer illustration
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Periwinkle pollen grain — Stock Photo
    Periwinkle pollen grain
    Parasites attacking sperm cell, conceptual illustration. — Stock Photo
    Parasites attacking sperm cell, conceptual illustration.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Digital illustration of colorful virus particles on plain background. — Stock Photo
    Digital illustration of colorful virus particles on plain background.
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration — Stock Photo
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital 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
    Young female scientist viewing microscope during research. — Stock Photo
    Young female scientist viewing microscope during research.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Cancer cell, computer illustration. — Stock Photo
    Cancer cell, computer illustration.
    Stages of autophagy mechanism — Stock Photo
    Stages of autophagy mechanism
    Abstract 3d illustration of nerve cells with connections in human nervous system. — Stock Photo
    Abstract 3d illustration of nerve cells with connections in human nervous system.
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration. — Stock Photo
    Trichomonas vaginalis causing trichomoniasis and neutrophils, digital illustration.
    T-cells (turquoise) surrounding a tumour (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus — Stock Photo
    T-cells (turquoise) surrounding a tumour (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.