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    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Hepatitis C and Polio virus particles, digital illustration. — Stock Photo
    Hepatitis C and Polio virus particles, digital illustration.
    Female silhouette with visible gallbladder, digital illustration. — Stock Photo
    Female silhouette with visible gallbladder, digital illustration.
    Illustration of Uranus planet in shadow on black background. — Stock Photo
    Illustration of Uranus planet in shadow on black background.
    Lower leg and foot muscles — Stock Photo
    Lower leg and foot muscles
    Illustration of fungus Candida auris — Stock Photo
    Illustration of fungus Candida auris
    Cross section of normal large intestine — Stock Photo
    Cross section of normal large intestine
    Illustration of painful sacrum joints in human skeleton part. — Stock Photo
    Illustration of painful sacrum joints in human skeleton part.
    3d rendered illustration of biker brain on black background. — Stock Photo
    3d rendered illustration of biker brain on black background.
    Digital artwork of unicellular yeast fungus Candida auris. — Stock Photo
    Digital artwork of unicellular yeast fungus Candida auris.
    Illustration of HIV virus particles in human blood. — Stock Photo
    Illustration of HIV virus particles in human blood.
    Magnified digital illustration of neutrophil cell. — Stock Photo
    Magnified digital illustration of neutrophil cell.
    Listeria monocytogenes bacterium, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis. Listeriosis is contracted through contaminated food — Stock Photo
    Listeria monocytogenes bacterium, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis. Listeriosis is contracted through contaminated food
    Removal of colon polyp — Stock Photo
    Removal of colon polyp
    3d rendered illustration of male biker on black background. — Stock Photo
    3d rendered illustration of male biker on black background.
    Illustration of lumbar spine in human skeleton on black background. — Stock Photo
    Illustration of lumbar spine in human skeleton on black background.
    Europe with clouds view of Earth globe, detailed and photorealistic 3d illustration on white background. — Stock Photo
    Europe with clouds view of Earth globe, detailed and photorealistic 3d illustration on white background.
    Digital illustration of trypanosome parasites which causing Chagas disease. — Stock Photo
    Digital illustration of trypanosome parasites which causing Chagas disease.
    Human brain with close-up view of neurons, computer illustration. — Stock Photo
    Human brain with close-up view of neurons, computer illustration.
    3d illustration of constricted and narrowed artery while arteriosclerosis. — Stock Photo
    3d illustration of constricted and narrowed artery while arteriosclerosis.
    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
    Magnified digital illustration of mast cell. — Stock Photo
    Magnified digital illustration of mast cell.
    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.
    Illustration of painful knee joint in human skeleton part. — Stock Photo
    Illustration of painful knee joint in human skeleton part.
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration — Stock Photo
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Visual rendering of exoplanet — Stock Photo
    Visual rendering of exoplanet
    Illustration of gallbladder cancer in human body silhouette. — Stock Photo
    Illustration of gallbladder cancer in human body silhouette.
    Male silhouette with arm pain, digital illustration. — Stock Photo
    Male silhouette with arm pain, digital illustration.
    Measles virus particles budding from cells, digital illustration. — Stock Photo
    Measles virus particles budding from cells, digital illustration.
    White blood cells, digital illustration. — Stock Photo
    White blood cells, digital illustration.
    Muscular system of leg — Stock Photo
    Muscular system of leg
    Lymph node with filaria nematode worms, digital illustration — Stock Photo
    Lymph node with filaria nematode worms, digital illustration
    Toilet microbes on contaminated seat surface, conceptual digital illustration. — Stock Photo
    Toilet microbes on contaminated seat surface, conceptual digital illustration.
    Muscles and structural anatomy — Stock Photo
    Muscles and structural anatomy
    Magnified digital illustration of mitochondrion cell. — Stock Photo
    Magnified digital illustration of mitochondrion cell.
    Quetzalcoatlus skeleton against white background, digital illustration. — Stock Photo
    Quetzalcoatlus skeleton against white background, digital illustration.
    White blood cells and proteins, digital illustration. — Stock Photo
    White blood cells and proteins, digital illustration.
    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.
    Human spinal pain — Stock Photo
    Human spinal pain
    Hypodermic needle and blood, computer illustration — Stock Photo
    Hypodermic needle and blood, computer illustration
    Illustration of human skeleton on black background. — Stock Photo
    Illustration of human skeleton on black background.
    Human papilloma virus (HPV), computer illustration. HPV causes warts, which mostly occur on hands and feet. Certain strains also infect genitals. Although most warts are non-malignant (not cancerous), some strains of HPV have been associated — Stock Photo
    Human papilloma virus (HPV), computer illustration. HPV causes warts, which mostly occur on hands and feet. Certain strains also infect genitals. Although most warts are non-malignant (not cancerous), some strains of HPV have been associated
    Human brain, conceptual illustration — Stock Photo
    Human brain, conceptual illustration
    Bone marrow stem cells dividing — Stock Photo
    Bone marrow stem cells dividing
    Lyme disease bacteria, digital illustration. — Stock Photo
    Lyme disease bacteria, digital illustration.
    Measles virus particle, computer illustration. — Stock Photo
    Measles virus particle, 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.
    Illustration of painful back in human skeleton part. — Stock Photo
    Illustration of painful back in human skeleton part.
    Digital illustration of painful back in human skeleton. — Stock Photo
    Digital illustration of painful back in human skeleton.
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Streptococcus pneumoniae, Helicobacter pylori, Salmonella, Shigella. — Stock Photo
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Streptococcus pneumoniae, Helicobacter pylori, Salmonella, Shigella.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    3d illustration of cancer cells connecting to tissue. — Stock Photo
    3d illustration of cancer cells connecting to tissue.
    Human heart anatomy showing valves, cross section illustration. — Stock Photo
    Human heart anatomy showing valves, cross section illustration.
    Digital illustration of abstract pathogenic microorganisms. — Stock Photo
    Digital illustration of abstract pathogenic microorganisms.
    Human head with brain — Stock Photo
    Human head with brain
    Human large intestine — Stock Photo
    Human large intestine
    Human papilloma virus (HPV), computer illustration — Stock Photo
    Human papilloma virus (HPV), computer illustration
    Cyst of Giardia intestinalis protozoan flagellated parasite in small intestine, digital illustration. — Stock Photo
    Cyst of Giardia intestinalis protozoan flagellated parasite in small intestine, digital illustration.