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    Digital illustration of trypanosome protozoan parasites in blood causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasites in blood causing sleeping sickness transmitted by blood.
    Nerve cell on black background, digital illustration. — Stock Photo
    Nerve cell on black background, digital illustration.
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Digital illustration showing close-up of cholera infection bacteria in small intestine. — Stock Photo
    Digital illustration showing close-up of cholera infection bacteria in small intestine.
    Illustration of Leptospira interrogans, showing a tightly-coiled, highly motile spirochaete bacterium — Stock Photo
    Illustration of Leptospira interrogans, showing a tightly-coiled, highly motile spirochaete bacterium
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    Blastomyces dermatitidis fungus, computer illustration. — Stock Photo
    Blastomyces dermatitidis fungus, computer illustration.
    Plague bacteria (Yersinia pestis), computer illustration. — Stock Photo
    Plague bacteria (Yersinia pestis), computer illustration.
    Proteins folding into their three dimensional structure, illustration. — Stock Photo
    Proteins folding into their three dimensional structure, illustration.
    Human brain cerebellum, digital illustration. — Stock Photo
    Human brain cerebellum, digital illustration.
    Flu virus, computer illustration — Stock Photo
    Flu virus, computer illustration
    Cloud computing structure, digital conceptual illustration. — Stock Photo
    Cloud computing structure, digital conceptual illustration.
    Human brain, computer illustration — Stock Photo
    Human brain, computer illustration
    Network, conceptual computer illustration — Stock Photo
    Network, conceptual computer illustration
    Oesophageal cancer, composite digital illustration with human body and cancer cell. — Stock Photo
    Oesophageal cancer, composite digital illustration with human body and cancer cell.
    African swine fever virus, illustration. This virus is member of iridovirus group that causes African swine fever, haemorrhagic fever in pigs that has high mortality rate — Stock Photo
    African swine fever virus, illustration. This virus is member of iridovirus group that causes African swine fever, haemorrhagic fever in pigs that has high mortality rate
    Anthrax bacteria, computer illustration. Anthrax bacteria (Bacillus anthracis) are cause of disease anthrax in humans and livestock — Stock Photo
    Anthrax bacteria, computer illustration. Anthrax bacteria (Bacillus anthracis) are cause of disease anthrax in humans and livestock
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria) — Stock Photo
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria)
    Group of flagella cholera bacteria, digital illustration. — Stock Photo
    Group of flagella cholera bacteria, digital illustration.
    View of Poliovirus particle — Stock Photo
    View of Poliovirus particle
    3d illustration of optical light guide cables in different colours with open ends which shining brightly. — Stock Photo
    3d illustration of optical light guide cables in different colours with open ends which shining brightly.
    Digital illustration showing bacteria causing lung infections, Mycobacterium tuberculosis, Streptococcus pneumoniae, Haemophilus influenzae, Pseudomonas aeruginosa. — Stock Photo
    Digital illustration showing bacteria causing lung infections, Mycobacterium tuberculosis, Streptococcus pneumoniae, Haemophilus influenzae, Pseudomonas aeruginosa.
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Cardiac muscle cells, digital illustration. — Stock Photo
    Cardiac muscle cells, digital illustration.
    Illustration of the Pacific 'Ring of Fire'. This is a region of tectonic plate boundaries around the Pacific Ocean, where earthquakes and volcanoes are common — Stock Photo
    Illustration of the Pacific 'Ring of Fire'. This is a region of tectonic plate boundaries around the Pacific Ocean, where earthquakes and volcanoes are common
    Network concept, computer illustration — Stock Photo
    Network concept, computer illustration
    Nipah virus particle, digital illustration. — Stock Photo
    Nipah virus particle, digital illustration.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Adipocyte fat cells, digital illustration. — Stock Photo
    Adipocyte fat cells, digital illustration.
    3d illustration of lymphocytes attacking cancer cell in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cell in human body.
    Nanobots attacking virus, conceptual digital illustration. — Stock Photo
    Nanobots attacking virus, conceptual digital illustration.
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis. — Stock Photo
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    Human brain, computer illustration — Stock Photo
    Human brain, computer illustration
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red). — Stock Photo
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red).
    Red cancer cells, digital illustration. — Stock Photo
    Red cancer cells, digital illustration.
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Pyramidal neurons of human brain cortex, computer illustration — Stock Photo
    Pyramidal neurons of human brain cortex, computer illustration
    Man with foot pain and highlighted skeleton, computer illustration. — Stock Photo
    Man with foot pain and highlighted skeleton, computer illustration.
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Human hair shafts, computer illustration — Stock Photo
    Human hair shafts, computer illustration
    3d illustration of Pneumocystis jirovecii (formerly known as Pneumocystis carinii) opportunistic yeast-like fungus which causes pneumonia in patients with HIV. — Stock Photo
    3d illustration of Pneumocystis jirovecii (formerly known as Pneumocystis carinii) opportunistic yeast-like fungus which causes pneumonia in patients with HIV.
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Detailed human brain anatomy, colored digital illustration. — Stock Photo
    Detailed human brain anatomy, colored digital illustration.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    3d illustration of a schistosome fluke (Schistosoma mansoni) — Stock Photo
    3d illustration of a schistosome fluke (Schistosoma mansoni)
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Human brain damage, digital medical illustration. — Stock Photo
    Human brain damage, digital medical illustration.
    Computer illustration of yeast and hyphae stages of Candida fungi — Stock Photo
    Computer illustration of yeast and hyphae stages of Candida fungi
    Brain neural network, computer illustration. — Stock Photo
    Brain neural network, computer illustration.
    Digital artwork of human sperm on plain background. — Stock Photo
    Digital artwork of human sperm on plain background.
    Human brain anatomy, detailed digital illustration. — Stock Photo
    Human brain anatomy, detailed digital illustration.
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Cardiac muscle cells — Stock Photo
    Cardiac muscle cells
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles