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    Doctor taking blood sample from patient arm. — Stock Photo
    Doctor taking blood sample from patient arm.
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system. — Stock Photo
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system.
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil blood cell. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil blood cell.
    Digital anatomical illustration of arteries and veins in body of senior man. — Stock Photo
    Digital anatomical illustration of arteries and veins in body of senior man.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    White blood cells — Stock Photo
    White blood cells
    Snowy owl perching on wood and eating in autumnal meadow. — Stock Photo
    Snowy owl perching on wood and eating in autumnal meadow.
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery.
    Male abdominal blood vessels, digital illustration. — Stock Photo
    Male abdominal blood vessels, digital illustration.
    Blood supply network of human head — Stock Photo
    Blood supply network of human head
    Close-up shot of doctor performing puncture with needle and laser cross on body of woman — Stock Photo
    Close-up shot of doctor performing puncture with needle and laser cross on body of woman
    Various citrus fruit mandarins, pink grapefruit, kumquat, orange and blood orange — Stock Photo
    Various citrus fruit mandarins, pink grapefruit, kumquat, orange and blood orange
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Computer illustration of coronavirus particles in bloodstream — Stock Photo
    Computer illustration of coronavirus particles in bloodstream
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Coronavirus infection, conceptual illustration. — Stock Photo
    Coronavirus infection, conceptual illustration.
    Digital illustration of mosquito sucking blood on skin. — Stock Photo
    Digital illustration of mosquito sucking blood on skin.
    Realistic human heart and blood vessels on black background, digital illustration. — Stock Photo
    Realistic human heart and blood vessels on black background, digital illustration.
    Medical illustration of arteries, veins and lymphatic system in human hand and arm — Stock Photo
    Medical illustration of arteries, veins and lymphatic system in human hand and arm
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic. — Stock Photo
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic.
    Mid section of butcher chopping red meat at butchers shop — Stock Photo
    Mid section of butcher chopping red meat at butchers shop
    Plasmodium falciparum protozoan inside red blood cells, computer illustration — Stock Photo
    Plasmodium falciparum protozoan inside red blood cells, computer illustration
    Close-up portrait of cheetah (Acinonyx jubatus) with blood stained face; Tanzania — Stock Photo
    Close-up portrait of cheetah (Acinonyx jubatus) with blood stained face; Tanzania
    Structure of eosinophil blood cell — Stock Photo
    Structure of eosinophil blood cell
    Normal and healthy abdomen anatomy — Stock Photo
    Normal and healthy abdomen anatomy
    Doctor testing patient blood sugar for diabetes in examination room — Stock Photo
    Doctor testing patient blood sugar for diabetes in examination room
    Internal organs and pelvic girdle — Stock Photo
    Internal organs and pelvic girdle
    Parasitic louse on human head skin, digital illustration. — Stock Photo
    Parasitic louse on human head skin, digital illustration.
    3d illustration of red blood cells erythrocytes, white blood cells leukocytes and platelets thrombocytes. — Stock Photo
    3d illustration of red blood cells erythrocytes, white blood cells leukocytes and platelets thrombocytes.
    Light micrograph (LM) of a section through the fingertip. — Stock Photo
    Light micrograph (LM) of a section through the fingertip.
    3d illustration of three metal stents for implantation into blood vessels. — Stock Photo
    3d illustration of three metal stents for implantation into blood vessels.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Human leg structural anatomy — Stock Photo
    Human leg structural anatomy
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Female donor with patch on hand sitting in medical chair after blood transfusion procedure — Stock Photo
    Female donor with patch on hand sitting in medical chair after blood transfusion procedure
    Smiling senior couple checking blood pressure — Stock Photo
    Smiling senior couple checking blood pressure
    Knee joint and the vascular system — Stock Photo
    Knee joint and the vascular system
    Black pudding and liver sausage — Stock Photo
    Black pudding and liver sausage
    Blood test kit and and analysis results — Stock Photo
    Blood test kit and and analysis results
    Fluffy cat with paw in blood oxygen meter lying on medical table after operation in clinic — Stock Photo
    Fluffy cat with paw in blood oxygen meter lying on medical table after operation in clinic
    Female anatomy cardiovascular system with skeleton on white background. — Stock Photo
    Female anatomy cardiovascular system with skeleton on white background.
    Illustration of small tick biting human skin. — Stock Photo
    Illustration of small tick biting human skin.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Lung aneurysm, light micrograph. — Stock Photo
    Lung aneurysm, light micrograph.
    Medical samples — Stock Photo
    Medical samples
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Blood orange halves — Stock Photo
    Blood orange halves
    Senior couple checking blood pressure — Stock Photo
    Senior couple checking blood pressure
    Biologist with protective gloves performing a coronavirus test on a person in a car — Stock Photo
    Biologist with protective gloves performing a coronavirus test on a person in a car
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Human brain with network of blood vessels — Stock Photo
    Human brain with network of blood vessels
    Female body showing neck anatomy, computer illustration. — Stock Photo
    Female body showing neck anatomy, computer illustration.
    From above of crop anonymous female donor with patch on hand sitting in medical chair after blood transfusion procedure — Stock Photo
    From above of crop anonymous female donor with patch on hand sitting in medical chair after blood transfusion procedure
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration — Stock Photo
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration
    Red and white blood cells aggregating — Stock Photo
    Red and white blood cells aggregating
    Oranges and blood oranges being juiced in hand juicer — Stock Photo
    Oranges and blood oranges being juiced in hand juicer
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration