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    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.
    Tired doctor wearing PPE leaning against a window, Thailand — Stock Photo
    Tired doctor wearing PPE leaning against a window, Thailand
    Nerve cells affected by alzheimers — Stock Photo
    Nerve cells affected by alzheimers
    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.
    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.
    Female body with heart attack, conceptual digital illustration. — Stock Photo
    Female body with heart attack, conceptual digital illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Human skull with temporomandibular pain, conceptual computer illustration. — Stock Photo
    Human skull with temporomandibular pain, conceptual computer illustration.
    Side view of a mature Caucasian woman with short grey hair wearing glasses sitting in her kitchen reading about her medication, with pill bottles, a weekly pill box and a glass of water on the counter beside her — Stock Photo
    Side view of a mature Caucasian woman with short grey hair wearing glasses sitting in her kitchen reading about her medication, with pill bottles, a weekly pill box and a glass of water on the counter beside her
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Visual render of Dengue virus — Stock Photo
    Visual render of Dengue virus
    Portrait of a girl with a headache on white background — Stock Photo
    Portrait of a girl with a headache on white background
    Diseased gallbladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased gallbladder in abstract human body, conceptual digital illustration.
    Illustration of kidney cancer on white background. — Stock Photo
    Illustration of kidney cancer on white background.
    Swine vesicular disease virus particle — Stock Photo
    Swine vesicular disease virus particle
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    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
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Mother carrying son with face masks on for protection from virus & flu — Stock Photo
    Mother carrying son with face masks on for protection from virus & flu
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Visual render of Swine flu — Stock Photo
    Visual render of Swine flu
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Illustration of illuminated red cancer cell on black background. — Stock Photo
    Illustration of illuminated red cancer cell on black background.
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human cancer cell.
    Illustration of intestine cancer in human body silhouette. — Stock Photo
    Illustration of intestine cancer in human body silhouette.
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria — Stock Photo
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria
    Digital illustration of human leg affected by lymphatic filariasis and close-up of microfilaria worm parasite. — Stock Photo
    Digital illustration of human leg affected by lymphatic filariasis and close-up of microfilaria worm parasite.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    Human silhouette with illuminated neck pain, digital illustration. — Stock Photo
    Human silhouette with illuminated neck pain, digital illustration.
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Heart disease in female body, conceptual digital illustration. — Stock Photo
    Heart disease in female body, conceptual digital illustration.
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Colored digital illustration of green cancer cell. — Stock Photo
    Colored digital illustration of green cancer cell.
    Anesthetist holding oxygen mask over patient mouth in operating room — Stock Photo
    Anesthetist holding oxygen mask over patient mouth in operating room
    Illustration of illuminated cancer cells on black background. — Stock Photo
    Illustration of illuminated cancer cells on black background.
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Total hip replacement — Stock Photo
    Total hip replacement
    Conceptual illustration showing virus infecting neurons of brain. — Stock Photo
    Conceptual illustration showing virus infecting neurons of brain.
    Illustration of lung cancer in human body silhouette. — Stock Photo
    Illustration of lung cancer in human body silhouette.
    Close-up shot of surgeon in operating room at work — Stock Photo
    Close-up shot of surgeon in operating room at work
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Digital artwork of green cancer cell on tissue surface. — Stock Photo
    Digital artwork of green cancer cell on tissue surface.
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    Portrait of a tired girl rubbing her face — Stock Photo
    Portrait of a tired girl rubbing her face
    Illustration of illuminated red cancer cell on black background. — Stock Photo
    Illustration of illuminated red cancer cell on black background.
    Human skeleton with hand pain, conceptual computer illustration. — Stock Photo
    Human skeleton with hand pain, conceptual computer illustration.
    Close up of the hands of woman resting on the table, with food on a plate, bottles of tablets and pills and a glass of water in front of her — Stock Photo
    Close up of the hands of woman resting on the table, with food on a plate, bottles of tablets and pills and a glass of water in front of her
    Man wearing anti virus masks waving to his friends — Stock Photo
    Man wearing anti virus masks waving to his friends
    Illustration of illuminated cancer cell on black background. — Stock Photo
    Illustration of illuminated cancer cell on black background.
    Human papillomavirus virus — Stock Photo
    Human papillomavirus virus
    Illustration of illuminated red human cancer cell. — Stock Photo
    Illustration of illuminated red human cancer cell.
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Diseased stomach in male body silhouette, conceptual computer illustration. — Stock Photo
    Diseased stomach in male body silhouette, conceptual computer illustration.
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Illustration of prostate cancer in human body silhouette. — Stock Photo
    Illustration of prostate cancer in human body silhouette.
    Coloured scanning electron micrograph of cancer cells from colon. — Stock Photo
    Coloured scanning electron micrograph of cancer cells from colon.
    Illustration of bladder cancer in human body silhouette. — Stock Photo
    Illustration of bladder cancer in human body silhouette.
    Visual render of Human rhinovirus 14 — Stock Photo
    Visual render of Human rhinovirus 14