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    Healthy and Infected bronchus — Stock Photo
    Healthy and Infected bronchus
    3d illustration of a Salmonella sp. bacterium approaching human cell — Stock Photo
    3d illustration of a Salmonella sp. bacterium approaching human cell
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Plague bacteria (Yersinia pestis), computer illustration. — Stock Photo
    Plague bacteria (Yersinia pestis), computer illustration.
    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)
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis — Stock Photo
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis
    Simple squamous epithelium, digital illustration. — Stock Photo
    Simple squamous epithelium, digital illustration.
    Colored norovirus particles, digital illustration. — Stock Photo
    Colored norovirus particles, digital 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.
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3) — Stock Photo
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3)
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Columnar epithelium structure — Stock Photo
    Columnar epithelium structure
    Nanomachines working on red blood cells, digital illustration. — Stock Photo
    Nanomachines working on red blood cells, digital illustration.
    Simple cuboidal epithelium, digital illustration. — Stock Photo
    Simple cuboidal epithelium, digital illustration.
    Zika virus blue particles, digital illustration. — Stock Photo
    Zika virus blue particles, digital illustration.
    Conceptual illustration of human microbiome microbes on white background. — Stock Photo
    Conceptual illustration of human microbiome microbes on white background.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Human brain, computer illustration. — Stock Photo
    Human brain, computer illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    3d illustration of the internal organs of a human body with the cardiovascular and nervous systems and brain. — Stock Photo
    3d illustration of the internal organs of a human body with the cardiovascular and nervous systems and brain.
    Blastomyces dermatitis fungus in yeast form, digital illustration. — Stock Photo
    Blastomyces dermatitis fungus in yeast form, digital illustration.
    Migrating breast cancer cell, digital 3d illustration. — Stock Photo
    Migrating breast cancer cell, digital 3d illustration.
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Pollen grains from different plants, computer illustration — Stock Photo
    Pollen grains from different plants, computer illustration
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Building human head, computer illustration — Stock Photo
    Building human head, computer illustration
    Cancer cell spreading, digital illustration. — Stock Photo
    Cancer cell spreading, digital illustration.
    Human Platelets, computer illustration — Stock Photo
    Human Platelets, computer illustration
    Artificial intelligence nerve cell, conceptual digital illustration. — Stock Photo
    Artificial intelligence nerve cell, conceptual digital illustration.
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Neisseria gonorrhoeae bacteria, illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, illustration.
    Nanomachine attacking cancer cells, digital illustration — Stock Photo
    Nanomachine attacking cancer cells, digital illustration
    3d illustration of sperm cells moving towards human womb. — Stock Photo
    3d illustration of sperm cells moving towards human womb.
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration — Stock Photo
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration
    Close-up of growing dermatophyte fungus, illustration. — Stock Photo
    Close-up of growing dermatophyte fungus, illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Artificial intelligence, conceptual illustration — Stock Photo
    Artificial intelligence, conceptual illustration
    Japanese encephalitis virus (JEV), computer illustration. JEV is an RNA (ribonucleic acid) virus from the Flaviviridae family — Stock Photo
    Japanese encephalitis virus (JEV), computer illustration. JEV is an RNA (ribonucleic acid) virus from the Flaviviridae family
    Undifferentiated stem cells — Stock Photo
    Undifferentiated stem cells
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Digital illustration showing red blood cells, platelets, neutrophils, monocyte and lymphocytes in normal blood smear. — Stock Photo
    Digital illustration showing red blood cells, platelets, neutrophils, monocyte and lymphocytes in normal blood smear.
    Lung bronchioles and alveoli, digital illustration. — Stock Photo
    Lung bronchioles and alveoli, digital illustration.
    Newborn digestive and cardio-vascular systems — Stock Photo
    Newborn digestive and cardio-vascular systems
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood.
    Zika virus blue particles, digital illustration. — Stock Photo
    Zika virus blue particles, digital illustration.
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    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.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Animal cells during cytokinesis (cell division), illustration — Stock Photo
    Animal cells during cytokinesis (cell division), illustration
    Human cytomegalovirus (HCMV), computer illustration. HCMV is member of herpesvirus family — Stock Photo
    Human cytomegalovirus (HCMV), computer illustration. HCMV is member of herpesvirus family
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Blastomyces dermatitidis fungus, computer illustration. — Stock Photo
    Blastomyces dermatitidis fungus, computer illustration.