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    Human skeleton with red colored Risorius muscle, digital illustration. — Stock Photo
    Human skeleton with red colored Risorius muscle, digital illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Illustration of group of cells in blood clot. — Stock Photo
    Illustration of group of cells in blood clot.
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Fertilization of healthy human egg — Stock Photo
    Fertilization of healthy human egg
    Human brain, computer illustration — Stock Photo
    Human brain, computer illustration
    Human hair shafts, computer illustration — Stock Photo
    Human hair shafts, computer illustration
    Vascular system of human head, computer illustration. — Stock Photo
    Vascular system of human head, computer illustration.
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Horse anatomy with visible internal organs on white background, computer illustration. — Stock Photo
    Horse anatomy with visible internal organs on white background, computer illustration.
    Illustration of human hair structure. — Stock Photo
    Illustration of human hair structure.
    Female body model with red colored Teres minor muscle, computer illustration. — Stock Photo
    Female body model with red colored Teres minor muscle, computer illustration.
    Magnified digital illustration of mast cell. — Stock Photo
    Magnified digital illustration of mast cell.
    Abstract painful female pelvic bones, computer illustration. — Stock Photo
    Abstract painful female pelvic bones, computer illustration.
    Trichophyton fungi on white background, digital illustration. — Stock Photo
    Trichophyton fungi on white background, digital illustration.
    Campylobacter jejuni bacteria with flagella, digital artwork. — Stock Photo
    Campylobacter jejuni bacteria with flagella, digital artwork.
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract. — Stock Photo
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract.
    Silhouette of human brain on plain background, digital illustration. — Stock Photo
    Silhouette of human brain on plain background, digital illustration.
    Illustration of small intestine in male body silhouette on black background. — Stock Photo
    Illustration of small intestine in male body silhouette on black background.
    Grey alien head on black background, digital illustration. — Stock Photo
    Grey alien head on black background, digital illustration.
    Dog silhouette with red colored kidneys on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored kidneys on black background, digital illustration.
    Sitting in chair female silhouette with back pain, digital illustration. — Stock Photo
    Sitting in chair female silhouette with back pain, digital illustration.
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Male anatomy showing Omohyoid muscle, computer illustration. — Stock Photo
    Male anatomy showing Omohyoid muscle, computer illustration.
    3d rendered illustration of shoulder muscles in human body. — Stock Photo
    3d rendered illustration of shoulder muscles in human body.
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration
    Human skeleton part with detailed red Gastrocnemius muscle, digital illustration. — Stock Photo
    Human skeleton part with detailed red Gastrocnemius muscle, digital 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.
    Bacteriophage virus cells infecting bacterium, digital illustration. — Stock Photo
    Bacteriophage virus cells infecting bacterium, digital illustration.
    Dog silhouette with red colored lungs on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored lungs on black background, digital illustration.
    Visible gallbladder in male body 3d model, computer illustration. — Stock Photo
    Visible gallbladder in male body 3d model, computer illustration.
    Digital illustration of senior man anatomy showing lymphatic system. — Stock Photo
    Digital illustration of senior man anatomy showing lymphatic system.
    Cancer cells in human brain, digital illustration. — Stock Photo
    Cancer cells in human brain, digital illustration.
    Oral trichomonas parasites, digital illustration. — Stock Photo
    Oral trichomonas parasites, digital illustration.
    Astronaut in space, computer illustration — Stock Photo
    Astronaut in space, computer illustration
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Abstract female body 3d model demonstrating stomach in human anatomy, digital illustration. — Stock Photo
    Abstract female body 3d model demonstrating stomach in human anatomy, digital illustration.
    Composite digital illustration of runner with visible skeleton. — Stock Photo
    Composite digital illustration of runner with visible skeleton.
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli). Many cells have a central spore. — Stock Photo
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli). Many cells have a central spore.
    Coronavirus particles, computer illustration. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome) — Stock Photo
    Coronavirus particles, computer illustration. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome)
    3d rendered illustration of colored female larynx in body silhouette. — Stock Photo
    3d rendered illustration of colored female larynx in body silhouette.
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    3d rendered illustration of anterior cruciate ligament in human skeleton. — Stock Photo
    3d rendered illustration of anterior cruciate ligament in human skeleton.
    Male upper body anatomy and musculature, computer illustration. — Stock Photo
    Male upper body anatomy and musculature, computer illustration.
    Human brain, conceptual illustration. — Stock Photo
    Human brain, conceptual illustration.
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia — Stock Photo
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia
    Male baseball player muscles while holding bat, computer illustration. — Stock Photo
    Male baseball player muscles while holding bat, computer illustration.
    Illustration of astronaut in spacesuit isolated on white background. — Stock Photo
    Illustration of astronaut in spacesuit isolated on white background.
    Male anatomy showing Temporalis muscle, computer illustration. — Stock Photo
    Male anatomy showing Temporalis muscle, computer illustration.
    Female abstract body with glowing breast cancer, conceptual computer illustration. — Stock Photo
    Female abstract body with glowing breast cancer, conceptual computer illustration.
    Illustration of lungs in transparent male silhouette. — Stock Photo
    Illustration of lungs in transparent male silhouette.
    Illustration of senior man silhouette with visible organs. — Stock Photo
    Illustration of senior man silhouette with visible organs.
    Distal phalanx bones in x-ray computer illustration of human foot. — Stock Photo
    Distal phalanx bones in x-ray computer illustration of human foot.
    Digital illustration of yeast and hyphae stages of Candida albicans fungus. — Stock Photo
    Digital illustration of yeast and hyphae stages of Candida albicans fungus.
    DNA strand against blue background, digital illustration. — Stock Photo
    DNA strand against blue background, digital illustration.
    Illustration of senior man silhouette with visible ureter. — Stock Photo
    Illustration of senior man silhouette with visible ureter.
    Digital illustration of rod-shaped bacteria colony. — Stock Photo
    Digital illustration of rod-shaped bacteria colony.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Bending male silhouette with back pain, conceptual illustration. — Stock Photo
    Bending male silhouette with back pain, conceptual illustration.