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5459 results

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    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Chicken pox virus — Stock Photo
    Chicken pox virus
    Illustration of male office worker painful muscles. — Stock Photo
    Illustration of male office worker painful muscles.
    Cancer cell spreading, digital illustration. — Stock Photo
    Cancer cell spreading, digital illustration.
    White blood cell, digital illustration. — Stock Photo
    White blood cell, digital illustration.
    Realistic human brain on white background, digital illustration. — Stock Photo
    Realistic human brain on white background, digital illustration.
    Sinuses cavities structure and anatomy — Stock Photo
    Sinuses cavities structure and anatomy
    Illustration of bladder cancer in human body silhouette. — Stock Photo
    Illustration of bladder cancer in human body silhouette.
    Illustration of human hip bones on white background. — Stock Photo
    Illustration of human hip bones on white background.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Digital illustration of colorful Polio virus particle. — Stock Photo
    Digital illustration of colorful Polio virus particle.
    Safety of drinking water. Conceptual illustration showing Pentatrichomonas hominis parasites in drop of water from tap. — Stock Photo
    Safety of drinking water. Conceptual illustration showing Pentatrichomonas hominis parasites in drop of water from tap.
    Illustration of figure of obese man with visible liver. — Stock Photo
    Illustration of figure of obese man with visible liver.
    Bending on bench female silhouette with foot pain, digital illustration. — Stock Photo
    Bending on bench female silhouette with foot pain, digital illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis B viruses, Entamoeba histolytica. — Stock Photo
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis B viruses, Entamoeba histolytica.
    Pentatrichomonas hominis protozoans in human large intestine, digital illustration. — Stock Photo
    Pentatrichomonas hominis protozoans in human large intestine, digital illustration.
    Blastomyces dermatitis fungus in yeast form, digital illustration. — Stock Photo
    Blastomyces dermatitis fungus in yeast form, digital illustration.
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration — Stock Photo
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration
    Illustration of foot bones in human skeleton. — Stock Photo
    Illustration of foot bones in human skeleton.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration. — Stock Photo
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration.
    Human stomach cancer, computer illustration. — Stock Photo
    Human stomach cancer, computer illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Illustration of human skin anatomy on white background. — Stock Photo
    Illustration of human skin anatomy on white background.
    Illustration of silhouette of obese man with visible heart. — Stock Photo
    Illustration of silhouette of obese man with visible heart.
    Normal human chromosomes — Stock Photo
    Normal human chromosomes
    Human neck muscles — Stock Photo
    Human neck muscles
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    Sitting on stool male silhouette with back pain, digital illustration. — Stock Photo
    Sitting on stool male silhouette with back pain, digital illustration.
    Human brain pituitary gland, digital illustration. — Stock Photo
    Human brain pituitary gland, digital illustration.
    Colored rhinovirus particles, digital illustration. — Stock Photo
    Colored rhinovirus particles, digital illustration.
    Fertilization of healthy human egg — Stock Photo
    Fertilization of healthy human egg
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    Muscular system of legs — Stock Photo
    Muscular system of legs
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants — Stock Photo
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants
    Leaning on stool male silhouette with knee pain, digital illustration. — Stock Photo
    Leaning on stool male silhouette with knee pain, digital illustration.
    Medical illustration of human blood vessels of legs. — Stock Photo
    Medical illustration of human blood vessels of legs.
    Illustration of tick parasite crawling on human skin surface. — Stock Photo
    Illustration of tick parasite crawling on human skin surface.
    Human fetus developing at week 40, computer illustration. — Stock Photo
    Human fetus developing at week 40, computer illustration.
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Illustration of hip joint in human skeleton. — Stock Photo
    Illustration of hip joint in human skeleton.
    Human T-cell lymphotropic virus particles, digital conceptual illustration. — Stock Photo
    Human T-cell lymphotropic virus particles, digital conceptual illustration.
    Pain localized in knee joint — Stock Photo
    Pain localized in knee joint
    Normal human brain — Stock Photo
    Normal human brain
    The human brain represented by light points connected by lines, 3d illustration. — Stock Photo
    The human brain represented by light points connected by lines, 3d illustration.
    Illustration of back bones in human skeleton on black background. — Stock Photo
    Illustration of back bones in human skeleton on black background.
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Gastric bypass procedure — Stock Photo
    Gastric bypass procedure
    3d rendered illustration of human nervous system. — Stock Photo
    3d rendered illustration of human nervous system.
    3d rendered illustration of skeleton in jogger body silhouette on black background. — Stock Photo
    3d rendered illustration of skeleton in jogger body silhouette on black background.
    Canine parvovirus, illustration. Canine Parvoviruses include the smallest known viruses and some of the most environmentally resistant. — Stock Photo
    Canine parvovirus, illustration. Canine Parvoviruses include the smallest known viruses and some of the most environmentally resistant.
    Knee join structure — Stock Photo
    Knee join structure
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    House dust mite — Stock Photo
    House dust mite
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Yellow brain tumour on magnetic resonance imaging scan, illustration. — Stock Photo
    Yellow brain tumour on magnetic resonance imaging scan, illustration.
    Conceptual digital illustration showing Giardia intestinalis parasites in drop of water from dirty tap. — Stock Photo
    Conceptual digital illustration showing Giardia intestinalis parasites in drop of water from dirty tap.
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Human heart anatomy showing pulmonary valve, illustration. — Stock Photo
    Human heart anatomy showing pulmonary valve, illustration.