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    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    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.
    Digital artwork of green cancer cell on tissue surface. — Stock Photo
    Digital artwork of green cancer cell on tissue surface.
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells — Stock Photo
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Syphilis bacteria shape and structure — Stock Photo
    Syphilis bacteria shape and structure
    BENIN, AFRICA - AUGUST 31, 2017: Black man sitting in hospital and looking over shoulder at camera while staff making treatment. — Stock Photo
    BENIN, AFRICA - AUGUST 31, 2017: Black man sitting in hospital and looking over shoulder at camera while staff making treatment.
    Liver overlaid with hepatitis B viruses — Stock Photo
    Liver overlaid with hepatitis B viruses
    Coloured X-ray of scoliosis of spine — Stock Photo
    Coloured X-ray of scoliosis of spine
    Computer illustration showing the common location of ulcers in diabetic foot infection. — Stock Photo
    Computer illustration showing the common location of ulcers in diabetic foot infection.
    Illustration of group of cells in blood clot. — Stock Photo
    Illustration of group of cells in blood clot.
    Inflamed prostate in abstract male body, digital illustration. — Stock Photo
    Inflamed prostate in abstract male body, digital illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Anatomy of swollen lymph nodes — Stock Photo
    Anatomy of swollen lymph nodes
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Colored digital illustration of green cancer cell. — Stock Photo
    Colored digital illustration of green cancer cell.
    Illustration of transparent cancer cell on blue background. — Stock Photo
    Illustration of transparent cancer cell on blue background.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, 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.
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis — Stock Photo
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Human brain damage, digital medical illustration. — Stock Photo
    Human brain damage, digital medical illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Close-up hands of male doctor holding stethoscope — Stock Photo
    Close-up hands of male doctor holding stethoscope
    Human lungs with viral pneumonia and close-up of virions. — Stock Photo
    Human lungs with viral pneumonia and close-up of virions.
    Illustration of pancreas cancer in human body silhouette. — Stock Photo
    Illustration of pancreas cancer in human body silhouette.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Human anatomy of knee pain, conceptual computer illustration. — Stock Photo
    Human anatomy of knee pain, conceptual computer illustration.
    Inflamed prostate in abstract male body, digital illustration. — Stock Photo
    Inflamed prostate in abstract male body, digital illustration.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    Human rhinovirus 16 particle — Stock Photo
    Human rhinovirus 16 particle
    Illustration of liver cancer in human body silhouette. — Stock Photo
    Illustration of liver cancer in human body silhouette.
    Colon cancer on plain background, digital illustration. — Stock Photo
    Colon cancer on plain background, digital illustration.
    Stomach cancerous tumor — Stock Photo
    Stomach cancerous tumor
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    3d rendered illustration of trachea cancer on white background. — Stock Photo
    3d rendered illustration of trachea cancer on white background.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Coloured scanning electron micrograph of cancer cells from colon. — Stock Photo
    Coloured scanning electron micrograph of cancer cells from colon.
    Front view close up of a mature Caucasian woman with short grey hair sitting up in bed at home, holding a pill and reaching for a glass of water to take her medication, a weekly pill box and other medication on her bedside table — Stock Photo
    Front view close up of a mature Caucasian woman with short grey hair sitting up in bed at home, holding a pill and reaching for a glass of water to take her medication, a weekly pill box and other medication on her bedside table
    Viral infection in bloodstream — Stock Photo
    Viral infection in bloodstream
    Man with Williams Syndrome playing a guitar — Stock Photo
    Man with Williams Syndrome playing a guitar
    Large intestine showing diverticulitis — Stock Photo
    Large intestine showing diverticulitis
    Patient with oxygen mask in operating room — Stock Photo
    Patient with oxygen mask in operating room
    Colon cancer in human body, digital illustration. — Stock Photo
    Colon cancer in human body, digital illustration.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    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.
    Colored digital illustration of purple cancer cell. — Stock Photo
    Colored digital illustration of purple cancer cell.
    Anatomical models of human brains in rows, anatomical pattern on pink background. — Stock Photo
    Anatomical models of human brains in rows, anatomical pattern on pink background.
    Osteochondritis dissecans of the knee — Stock Photo
    Osteochondritis dissecans of the knee
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Portrait of a naked woman with a sports target covering her body — Stock Photo
    Portrait of a naked woman with a sports target covering her body
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria — Stock Photo
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria
    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.
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis — Stock Photo
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis
    Man putting on face mask on a winter day — Stock Photo
    Man putting on face mask on a winter day
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Red blood cells in sickle cell anaemia — Stock Photo
    Red blood cells in sickle cell anaemia