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    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Entamoeba histolytica engulfing red blood cells — Stock Photo
    Entamoeba histolytica engulfing red blood cells
    Diseased lungs in transparent female body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent female body on black background, computer illustration.
    3d illustration of Salmonella sp. bacteria showing internal structure — Stock Photo
    3d illustration of Salmonella sp. bacteria showing internal structure
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation — Stock Photo
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration. — Stock Photo
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration.
    Colored yellow DNA molecule damage, genetic disorder conceptual illustration. — Stock Photo
    Colored yellow DNA molecule damage, genetic disorder conceptual illustration.
    Illustration of adrenal glands in transparent male silhouette. — Stock Photo
    Illustration of adrenal glands in transparent male silhouette.
    Illustration of transparent blue silhouette of male body with colored lung tumour. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored lung tumour.
    Woman on top of 4x4 parked in the Moremi Reserve, Botswana. — Stock Photo
    Woman on top of 4x4 parked in the Moremi Reserve, Botswana.
    Illustration of female silhouette with highlighted thyroid gland cancer. — Stock Photo
    Illustration of female silhouette with highlighted thyroid gland cancer.
    Illustration of female silhouette with painful kidney. — Stock Photo
    Illustration of female silhouette with painful kidney.
    Illustration of female silhouette with highlighted lung cancer. — Stock Photo
    Illustration of female silhouette with highlighted lung cancer.
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia. — Stock Photo
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia.
    3d rendered illustration of blue silhouette of male legs with painful calf. — Stock Photo
    3d rendered illustration of blue silhouette of male legs with painful calf.
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Digital illustration of Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia. — Stock Photo
    Digital illustration of Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia.
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis. — Stock Photo
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3) — Stock Photo
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3)
    Medical illustration of pancreas cancer in female silhouette. — Stock Photo
    Medical illustration of pancreas cancer in female silhouette.
    Illustration of transparent gray silhouette of male body with colored adrenal glands. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored adrenal glands.
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Interior of construction site with exposed ducts and metal joists. — Stock Photo
    Interior of construction site with exposed ducts and metal joists.
    Colored yellow DNA molecule damage, genetic disorder conceptual illustration. — Stock Photo
    Colored yellow DNA molecule damage, genetic disorder conceptual illustration.
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Diseased liver in male body silhouette, digital illustration. — Stock Photo
    Diseased liver in male body silhouette, digital illustration.
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva — Stock Photo
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva
    Ankle of patient with osteoarthritis — Stock Photo
    Ankle of patient with osteoarthritis
    Illustration of blue cancer cell on blue background. — Stock Photo
    Illustration of blue cancer cell on blue background.
    3d illustration of cholera pathogens in dark polluted water. — Stock Photo
    3d illustration of cholera pathogens in dark polluted water.
    Colored digital illustration of pink cancer cells. — Stock Photo
    Colored digital illustration of pink cancer cells.
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Digital illustration of cross-section of blood vessel with acute lymphoblastic leukaemia showing abundant lymphoblasts. — Stock Photo
    Digital illustration of cross-section of blood vessel with acute lymphoblastic leukaemia showing abundant lymphoblasts.
    Two people taking pictures — Stock Photo
    Two people taking pictures
    Dopaminergic neuron brain cells, digital illustration. — Stock Photo
    Dopaminergic neuron brain cells, digital illustration.
    3d rendered illustration of blue silhouette of man with chest pain. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain.
    3d rendered illustration of little tick on skin surface. — Stock Photo
    3d rendered illustration of little tick on skin surface.
    Toilet seat microbes, conceptual digital illustration. — Stock Photo
    Toilet seat microbes, conceptual digital illustration.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Coloured X-rays of the right foot, showing a metal plate and screws (white) in the foot bone beneath the little toe (upper right). — Stock Photo
    Coloured X-rays of the right foot, showing a metal plate and screws (white) in the foot bone beneath the little toe (upper right).
    Uterine cancer in female body, conceptual computer illustration. — Stock Photo
    Uterine cancer in female body, conceptual computer illustration.
    Zabriskie Point at dawn — Stock Photo
    Zabriskie Point at dawn
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Mengo encephalomyocarditis virus particle, digital illustration. — Stock Photo
    Mengo encephalomyocarditis virus particle, digital illustration.
    Illustration of pancreas cancer in human body silhouette. — Stock Photo
    Illustration of pancreas cancer in human body silhouette.
    View of narrow dirty and grungy street flooded with water and trash floating on top — Stock Photo
    View of narrow dirty and grungy street flooded with water and trash floating on top
    Ruining DNA molecule, genetic disorder conceptual illustration. — Stock Photo
    Ruining DNA molecule, genetic disorder conceptual illustration.
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Diseased bladder in transparent female body model, conceptual illustration. — Stock Photo
    Diseased bladder in transparent female body model, conceptual illustration.
    Colored illustration of amyloid plaques on nerve cell. — Stock Photo
    Colored illustration of amyloid plaques on nerve cell.
    Facade of factory with plasterboard walls and exit with modern glass door — Stock Photo
    Facade of factory with plasterboard walls and exit with modern glass door
    CUBA - AUGUST 27, 2016: Old woman walking on pavement of street in poor district. — Stock Photo
    CUBA - AUGUST 27, 2016: Old woman walking on pavement of street in poor district.
    View of meningioma tumor — Stock Photo
    View of meningioma tumor
    Coronavirus particles infecting a human cell, computer illustration — Stock Photo
    Coronavirus particles infecting a human cell, computer illustration
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness. — Stock Photo
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness.