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    Helical DNA molecules, digital illustration. — Stock Photo
    Helical DNA molecules, digital illustration.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Pneumonia caused by varicella zoster virus, digital illustration. — Stock Photo
    Pneumonia caused by varicella zoster virus, digital illustration.
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Digital illustration of virus particles on black background. — Stock Photo
    Digital illustration of virus particles on black background.
    Fertilization of healthy human egg — Stock Photo
    Fertilization of healthy human egg
    Metaphase chromosome structure — Stock Photo
    Metaphase chromosome structure
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Close-up of scientist pipetting liquid into multiwell tray. — Stock Photo
    Close-up of scientist pipetting liquid into multiwell tray.
    Digital illustration of parasitic Ancylostoma duodenale hookworms. — Stock Photo
    Digital illustration of parasitic Ancylostoma duodenale hookworms.
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar. — Stock Photo
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar.
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Visual render of Rotavirus — Stock Photo
    Visual render of Rotavirus
    Lymphatic system of male upper body, computer illustration. — Stock Photo
    Lymphatic system of male upper body, computer illustration.
    3d illustration of a ribosome (purple), the site of protein synthesis, producing a polypeptide chain (blue). This process is known as translation. — Stock Photo
    3d illustration of a ribosome (purple), the site of protein synthesis, producing a polypeptide chain (blue). This process is known as translation.
    Genetics research toolkit — Stock Photo
    Genetics research toolkit
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Digital illustration of Mycobacterium leprae gram-positive rod-shaped bacteria, causative agent of disease leprosy. — Stock Photo
    Digital illustration of Mycobacterium leprae gram-positive rod-shaped bacteria, causative agent of disease leprosy.
    Close-up of petri dish and dropping pipette for genetic research. — Stock Photo
    Close-up of petri dish and dropping pipette for genetic research.
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.
    Digital illustration of Mycobacterium tuberculosis gram-positive rod-shaped bacteria which causing disease tuberculosis. — Stock Photo
    Digital illustration of Mycobacterium tuberculosis gram-positive rod-shaped bacteria which causing disease tuberculosis.
    Abstract computer illustration of RNA polymerase transcribing DNA to messenger RNA mRNA. — Stock Photo
    Abstract computer illustration of RNA polymerase transcribing DNA to messenger RNA mRNA.
    Bacterial blood infection — Stock Photo
    Bacterial blood infection
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    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.
    Close-up of pipetting liquid into Eppendorf tubes. — Stock Photo
    Close-up of pipetting liquid into Eppendorf tubes.
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Coloured scanning electron micrograph of bacteria from culture of breast milk. — Stock Photo
    Coloured scanning electron micrograph of bacteria from culture of breast milk.
    Coiled proboscis of a moth — Stock Photo
    Coiled proboscis of a moth
    Human fetus developing at week 23, computer illustration. — Stock Photo
    Human fetus developing at week 23, computer illustration.
    Illustration of motor protein cellular structure. — Stock Photo
    Illustration of motor protein cellular structure.
    Measles virus particles, digital illustration. — Stock Photo
    Measles virus particles, digital illustration.
    Illustration of synapse structure in cross section. — Stock Photo
    Illustration of synapse structure in cross section.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Corynebacterium diphtheriae, computer illustration. C. diphtheriae is a gram-positive rod-shaped bacterium which is transmitted by respiratory droplets and causes the disease diphtheria — Stock Photo
    Corynebacterium diphtheriae, computer illustration. C. diphtheriae is a gram-positive rod-shaped bacterium which is transmitted by respiratory droplets and causes the disease diphtheria
    Gloved hand holding blood sample in test tube. — Stock Photo
    Gloved hand holding blood sample in test tube.
    Illustration of human egg cell dividing on blue background. — Stock Photo
    Illustration of human egg cell dividing on blue background.
    Measles virus particles budding from cells, digital illustration. — Stock Photo
    Measles virus particles budding from cells, digital illustration.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Norovirus, illustration. Norovirus or 'winter vomiting bug' is a genus of RNA virus that causes many cases of stomach upset. The disease is characterised by nausea, vomiting, diarrhoea and abdominal pain — Stock Photo
    Norovirus, illustration. Norovirus or 'winter vomiting bug' is a genus of RNA virus that causes many cases of stomach upset. The disease is characterised by nausea, vomiting, diarrhoea and abdominal pain
    Normal human egg — Stock Photo
    Normal human egg
    Coronavirus particle, 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 particle, computer illustration. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome)
    Freshwater sponge (Spongilla sp.), coloured scanning electron micrograph (SEM). — Stock Photo
    Freshwater sponge (Spongilla sp.), coloured scanning electron micrograph (SEM).
    Nanomachines working on red and white blood cells, digital illustration. — Stock Photo
    Nanomachines working on red and white blood cells, digital illustration.
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Human anatomy, 3d illustration. — Stock Photo
    Human anatomy, 3d illustration.
    Female biologist holding flask containing stem cells. — Stock Photo
    Female biologist holding flask containing stem cells.
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    Red blood cells aggregated — Stock Photo
    Red blood cells aggregated
    Abstract human immunodeficiency virus structure, scientific digital informative illustration. — Stock Photo
    Abstract human immunodeficiency virus structure, scientific digital informative illustration.
    Sindbis virus (SINV), computer illustration — Stock Photo
    Sindbis virus (SINV), computer illustration
    Lactobacillus bulgaricus bacteria — Stock Photo
    Lactobacillus bulgaricus bacteria
    3d illustration of cholera pathogens in dark polluted water. — Stock Photo
    3d illustration of cholera pathogens in dark polluted water.