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    Front view of a mature Caucasian woman with short grey hair sitting on her bed at home drinking a glass of water and taking medication, with containers of medication on the bed beside her — Stock Photo
    Front view of a mature Caucasian woman with short grey hair sitting on her bed at home drinking a glass of water and taking medication, with containers of medication on the bed beside her
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Visual rendering of Sleeping sickness — Stock Photo
    Visual rendering of Sleeping sickness
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Close-up shot of surgeon in operating room at work — Stock Photo
    Close-up shot of surgeon in operating room at work
    3d illustration of red blood cells disintegrating. — Stock Photo
    3d illustration of red blood cells disintegrating.
    Human skeleton with shoulder pain, conceptual computer illustration. — Stock Photo
    Human skeleton with shoulder pain, conceptual computer illustration.
    Illustration of fat inside of human artery. — Stock Photo
    Illustration of fat inside of human artery.
    Virus particles or virions — Stock Photo
    Virus particles or virions
    Doctor explaining medication to patient in hospital — Stock Photo
    Doctor explaining medication to patient in hospital
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Man with beard wearing face mask — Stock Photo
    Man with beard wearing face mask
    Endobronchial valves fitted to treat tuberculosis — Stock Photo
    Endobronchial valves fitted to treat tuberculosis
    Front view close up of a mature Caucasian woman with short grey hair sitting on her bed taking medication at home — Stock Photo
    Front view close up of a mature Caucasian woman with short grey hair sitting on her bed taking medication at home
    Young girl in face mask climbing on see saw at playground — Stock Photo
    Young girl in face mask climbing on see saw at playground
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria. — Stock Photo
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria.
    Human lungs with viral pneumonia and close-up of virions. — Stock Photo
    Human lungs with viral pneumonia and close-up of virions.
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Young boy with face mask on protecting himself from flu and virus — Stock Photo
    Young boy with face mask on protecting himself from flu and virus
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    Illustration of stent inside of human fatty artery. — Stock Photo
    Illustration of stent inside of human fatty artery.
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Visual render of SARS virus — Stock Photo
    Visual render of SARS virus
    Visual render of Swine flu — Stock Photo
    Visual render of Swine flu
    Human heart with disease, computer illustration. — Stock Photo
    Human heart with disease, computer illustration.
    Abstract female body with detailed neck pain, conceptual digital illustration. — Stock Photo
    Abstract female body with detailed neck pain, conceptual digital illustration.
    Patient visiting with family in hospital room — Stock Photo
    Patient visiting with family in hospital room
    Man with Williams Syndrome playing a guitar — Stock Photo
    Man with Williams Syndrome playing a guitar
    Conceptual illustration showing virus infecting neurons of brain. — Stock Photo
    Conceptual illustration showing virus infecting neurons of brain.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Simian virus 40 particle — Stock Photo
    Simian virus 40 particle
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human cancer cell.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Illustration of larynx cancer in human body silhouette. — Stock Photo
    Illustration of larynx cancer in human body silhouette.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Whooping cough contagious infectious lungs disease and close-up of Bordetella pertussis bacteria. — Stock Photo
    Whooping cough contagious infectious lungs disease and close-up of Bordetella pertussis bacteria.
    Illustration of pancreas cancer in human body silhouette. — Stock Photo
    Illustration of pancreas cancer in human body silhouette.
    Thyroid gland cancer — Stock Photo
    Thyroid gland cancer
    Digital illustration of red migrating cancer cells. — Stock Photo
    Digital illustration of red migrating cancer cells.
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis, showing fibrosis and lack of a functional liver anatomy. — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with cirrhosis, showing fibrosis and lack of a functional liver anatomy.
    Illustration of illuminated purple cancer cell on black background. — Stock Photo
    Illustration of illuminated purple cancer cell on black background.
    Illustration of fat inside of human artery. — Stock Photo
    Illustration of fat inside of human artery.
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human cancer cell.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Visual render of Caulobacter bacteriophage — Stock Photo
    Visual render of Caulobacter bacteriophage
    Swine vesicular disease virus particle — Stock Photo
    Swine vesicular disease virus particle
    Cropped image of Girl sleeping on a couch — Stock Photo
    Cropped image of Girl sleeping on a couch
    Illustration of stent inside of human fatty artery. — Stock Photo
    Illustration of stent inside of human fatty artery.
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    Cancerous tumour in the colon — Stock Photo
    Cancerous tumour in the colon
    Diseased kidneys in abstract male body, conceptual computer illustration. — Stock Photo
    Diseased kidneys in abstract male body, conceptual computer illustration.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph