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    Digital illustration of head of parasitic hookworm Ancylostoma duodenale in small intestine. — Stock Photo
    Digital illustration of head of parasitic hookworm Ancylostoma duodenale in small intestine.
    Illustration of malaria infected blood cells. — Stock Photo
    Illustration of malaria infected blood cells.
    Illustration of adrenal glands in male body silhouette. — Stock Photo
    Illustration of adrenal glands in male body silhouette.
    Visual render of Adenovirus — Stock Photo
    Visual render of Adenovirus
    Rod-shaped bacteria infecting organism — Stock Photo
    Rod-shaped bacteria infecting organism
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    Crop unrecognizable parent with electronic thermometer measuring temperature of anonymous sick boy having cold — Stock Photo
    Crop unrecognizable parent with electronic thermometer measuring temperature of anonymous sick boy having cold
    Digital artwork of silhouette with liver and close-up of hepatitis C virus particles. — Stock Photo
    Digital artwork of silhouette with liver and close-up of hepatitis C virus particles.
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells — Stock Photo
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells
    Group of viruses, computer illustration — Stock Photo
    Group of viruses, computer 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
    From below ill boy measuring temperature with electronic thermometer while lying on couch at home and having flu — Stock Photo
    From below ill boy measuring temperature with electronic thermometer while lying on couch at home and having flu
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia. — Stock Photo
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia.
    Medical illustration of lung cancer in female silhouette. — Stock Photo
    Medical illustration of lung cancer in female silhouette.
    Cancerous tumour in the colon — Stock Photo
    Cancerous tumour in the colon
    Abstract model of seasonal influenza B virus, conceptual digital illustration. — Stock Photo
    Abstract model of seasonal influenza B virus, conceptual digital illustration.
    Diseased lungs in transparent male body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on black background, computer illustration.
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    Human silhouette showing lung cancer tumor, conceptual illustration. — Stock Photo
    Human silhouette showing lung cancer tumor, conceptual illustration.
    Visual render of Brain cancer — Stock Photo
    Visual render of Brain cancer
    Nipah virus particles, computer illustration. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore in people who had close contact with pigs — Stock Photo
    Nipah virus particles, computer illustration. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore in people who had close contact with pigs
    Surgeons making operation — Stock Photo
    Surgeons making operation
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    Digital illustration of Norovirus genus of RNA virus. — Stock Photo
    Digital illustration of Norovirus genus of RNA virus.
    Cropped unrecognizable female medical specialist in protective uniform and latex gloves vaccinating anonymous African American female patient in clinic during coronavirus outbreak — Stock Photo
    Cropped unrecognizable female medical specialist in protective uniform and latex gloves vaccinating anonymous African American female patient in clinic during coronavirus outbreak
    Illustration of human silhouette with painful intestine. — Stock Photo
    Illustration of human silhouette with painful intestine.
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Microscopic view of human respiratory syncytial RSV virus — Stock Photo
    Microscopic view of human respiratory syncytial RSV virus
    Visual render of Rotavirus — Stock Photo
    Visual render of Rotavirus
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Digital illustration of ciliate protozoan Balantidium coli intestinal parasites causing ulcer in intestinal tract. — Stock Photo
    Digital illustration of ciliate protozoan Balantidium coli intestinal parasites causing ulcer in intestinal tract.
    Human papilloma virus — Stock Photo
    Human papilloma virus
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    Light micrograph of parenchymatous and fatty degeneration of liver pathology. Haematoxylin and eosin. — Stock Photo
    Light micrograph of parenchymatous and fatty degeneration of liver pathology. Haematoxylin and eosin.
    Nurse holding a vial of the coronavirus vaccine and a rapid PCR test device — Stock Photo
    Nurse holding a vial of the coronavirus vaccine and a rapid PCR test device
    Rotavirus particles infecting human intestine, digital artwork. — Stock Photo
    Rotavirus particles infecting human intestine, digital artwork.
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration.
    Parasitic Tick feeding — Stock Photo
    Parasitic Tick feeding
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Visual render of Human rhinovirus 14 — Stock Photo
    Visual render of Human rhinovirus 14
    Digital 3d colored illustration of cancer cell in process of mitosis. — Stock Photo
    Digital 3d colored illustration of cancer cell in process of mitosis.
    Diseased kidneys in abstract male body, conceptual computer illustration. — Stock Photo
    Diseased kidneys in abstract male body, conceptual computer illustration.
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast. — Stock Photo
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast.
    From above anonymous sick female with glass of water and handful of flu medications sitting under warm blanket on bed at home — Stock Photo
    From above anonymous sick female with glass of water and handful of flu medications sitting under warm blanket on bed at home
    3d rendered illustration of blue silhouette of man with chest pain. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Diseased stomach in male body silhouette, conceptual computer illustration. — Stock Photo
    Diseased stomach in male body silhouette, conceptual computer illustration.
    Orange colored lungs in female body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in female body silhouette, computer illustration.
    Dividing prostate gland cancer cells, colored scanning electron micrograph. — Stock Photo
    Dividing prostate gland cancer cells, colored scanning electron micrograph.
    Group of unrecognizable professional doctors wearing protective masks and uniforms transporting patient with viral infection through hall in clinic to operating room — Stock Photo
    Group of unrecognizable professional doctors wearing protective masks and uniforms transporting patient with viral infection through hall in clinic to operating room
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Illustration of cancerous tumour in female stomach. — Stock Photo
    Illustration of cancerous tumour in female stomach.
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration.
    Cropped black doctor in protective uniform and latex gloves vaccinating unrecognizable male African American patient in clinic during coronavirus outbreak — Stock Photo
    Cropped black doctor in protective uniform and latex gloves vaccinating unrecognizable male African American patient in clinic during coronavirus outbreak
    Illustration of small intestine tumour in transparent male silhouette. — Stock Photo
    Illustration of small intestine tumour in transparent male silhouette.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph