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    Comparison of gross anatomy of acute and chronic pyelonephritis, illustration. — Stock Photo
    Comparison of gross anatomy of acute and chronic pyelonephritis, illustration.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Medical samples — Stock Photo
    Medical samples
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration. — Stock Photo
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration.
    Silhouette with lungs pneumonia caused by measles virus, conceptual illustration. — Stock Photo
    Silhouette with lungs pneumonia caused by measles virus, conceptual illustration.
    Illustration of yellow abscesses on kidney and close-up of bacteria. — Stock Photo
    Illustration of yellow abscesses on kidney and close-up of bacteria.
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella. — Stock Photo
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella.
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Covid-19 coronavirus particles, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019 — Stock Photo
    Covid-19 coronavirus particles, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019
    Measles virus particle, illustration. This virus, from the Morbillivirus group of viruses, consists of an RNA (ribonucleic acid) core surrounded by an envelope studded with surface proteins haemagglutinin-neuraminidase and fusion protein — Stock Photo
    Measles virus particle, illustration. This virus, from the Morbillivirus group of viruses, consists of an RNA (ribonucleic acid) core surrounded by an envelope studded with surface proteins haemagglutinin-neuraminidase and fusion protein
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease.
    X-ray of dislocated shoulder — Stock Photo
    X-ray of dislocated shoulder
    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain.
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    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.
    Colored digital illustration of pink cancer cells. — Stock Photo
    Colored digital illustration of pink cancer cells.
    Female laboratory worker filling vials with pipette, close-up. — Stock Photo
    Female laboratory worker filling vials with pipette, close-up.
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    3d illustration of Coxiella burnetii bacteria. This bacterium affects humans and other animals such as cattle, sheep, goats, cats and dogs. It is the cause of Q fever, a highly infectious, influenza-like, febrile illness — Stock Photo
    3d illustration of Coxiella burnetii bacteria. This bacterium affects humans and other animals such as cattle, sheep, goats, cats and dogs. It is the cause of Q fever, a highly infectious, influenza-like, febrile illness
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Illustration of illuminated red human cancer cells. — Stock Photo
    Illustration of illuminated red human cancer cells.
    Digital artwork of Gram-positive anaerobic Bifidobacterium bacteria. — Stock Photo
    Digital artwork of Gram-positive anaerobic Bifidobacterium bacteria.
    Digital illustration of Enterobacter Gram-negative bacilli on black background. — Stock Photo
    Digital illustration of Enterobacter Gram-negative bacilli on black background.
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background. — Stock Photo
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background.
    Measles virus particles, digital illustration. — Stock Photo
    Measles virus particles, digital 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.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Scientist pipetting sample into micro centrifuge tubes ready for automated analysis. — Stock Photo
    Scientist pipetting sample into micro centrifuge tubes ready for automated analysis.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    Male scientist doing medical testing of sample under microscope. — Stock Photo
    Male scientist doing medical testing of sample under microscope.
    Colored digital illustration of red cancer cells. — Stock Photo
    Colored digital illustration of red cancer cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    X-ray of Broken shoulder — Stock Photo
    X-ray of Broken shoulder
    Blond boy, wearing a respirator and showing stop sign — Stock Photo
    Blond boy, wearing a respirator and showing stop sign
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Artwork of human digestive system and close-up of bacteria in small intestine. — Stock Photo
    Artwork of human digestive system and close-up of bacteria in small intestine.
    Illustration of rod-shaped bacteria inside alveoli of lungs causing lower respiratory tract infection. — Stock Photo
    Illustration of rod-shaped bacteria inside alveoli of lungs causing lower respiratory tract infection.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Removal of colon polyp — Stock Photo
    Removal of colon polyp
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development. — Stock Photo
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development.
    Colored digital illustration of green cancer cell. — Stock Photo
    Colored digital illustration of green cancer cell.
    Neutrophil cells aggregating at site of infection — Stock Photo
    Neutrophil cells aggregating at site of infection
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Dividing prostate gland cancer cells, colored scanning electron micrograph. — Stock Photo
    Dividing prostate gland cancer cells, colored scanning electron micrograph.
    Visual rendering of arthritic shoulder — Stock Photo
    Visual rendering of arthritic shoulder
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Composite image of bacterial and fungal cultures in Petri dish in scientist hand in front of microbial illustration. — Stock Photo
    Composite image of bacterial and fungal cultures in Petri dish in scientist hand in front of microbial illustration.
    Digital illustration of virus particles on plain background. — Stock Photo
    Digital illustration of virus particles on plain background.
    Mother putting on a respirator for her child to avoid possible infection — Stock Photo
    Mother putting on a respirator for her child to avoid possible infection
    Digital illustration of trypanosome parasites causing Chagas disease. — Stock Photo
    Digital illustration of trypanosome parasites causing Chagas disease.
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019 — Stock Photo
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019
    Illustration of illuminated red human cancer cell. — Stock Photo
    Illustration of illuminated red human cancer cell.
    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.
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels