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    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    African trypanosomiasis parasitic infection in the red blood cells — Stock Photo
    African trypanosomiasis parasitic infection in the red blood cells
    Closeup of blood collection mixer machine indicating volume of donor blood in medical laboratory — Stock Photo
    Closeup of blood collection mixer machine indicating volume of donor blood in medical laboratory
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Blood sampling vacutainer tubes in rack, close-up. — Stock Photo
    Blood sampling vacutainer tubes in rack, close-up.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    3d illustration of blood plasma and components of blood flowing from artery. — Stock Photo
    3d illustration of blood plasma and components of blood flowing from artery.
    Mature male doctor processing donor blood in bags. — Stock Photo
    Mature male doctor processing donor blood in bags.
    Plasmodium ovale protozoan inside red blood cells at the ring-form trophozoite stage, computer illustration — Stock Photo
    Plasmodium ovale protozoan inside red blood cells at the ring-form trophozoite stage, computer illustration
    Red human heart on black background, computer illustration. — Stock Photo
    Red human heart on black background, computer illustration.
    Protozoan Plasmodium malariae inside red blood cell in the schizont stage, computer illustration — Stock Photo
    Protozoan Plasmodium malariae inside red blood cell in the schizont stage, computer illustration
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Activated platelets, computer illustration — Stock Photo
    Activated platelets, computer illustration
    3d digital illustration of narrowed blood vessel. — Stock Photo
    3d digital illustration of narrowed blood vessel.
    Bacteriophages infecting bacteria, digital illustration. — Stock Photo
    Bacteriophages infecting bacteria, digital illustration.
    Cytotoxic T-cells capturing cancer cells, digital illustration. — Stock Photo
    Cytotoxic T-cells capturing cancer cells, digital illustration.
    Close-up of laboratory technician using machine in blood bank — Stock Photo
    Close-up of laboratory technician using machine in blood bank
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Human rib cage showing heart with vessels and bronchial tree on white background. — Stock Photo
    Human rib cage showing heart with vessels and bronchial tree on white background.
    Tick on human skin, computer illustration. — Stock Photo
    Tick on human skin, computer illustration.
    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.
    Protozoan Plasmodium malariae inside red blood cell in the schizont stage, computer illustration — Stock Photo
    Protozoan Plasmodium malariae inside red blood cell in the schizont stage, computer illustration
    Human cardiovascular system — Stock Photo
    Human cardiovascular system
    Female body with visible cardiovascular system, digital illustration. — Stock Photo
    Female body with visible cardiovascular system, digital illustration.
    Doctor using a lance to take a finger prick blood sample from a patient. — Stock Photo
    Doctor using a lance to take a finger prick blood sample from a patient.
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    Mid section of senior man donating blood in blood bank — Stock Photo
    Mid section of senior man donating blood in blood bank
    Human heart, computer illustration — Stock Photo
    Human heart, computer illustration
    Illustration of metal artificial heart on white background. — Stock Photo
    Illustration of metal artificial heart on white background.
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Blood samples tubes in polystyrene tray. — Stock Photo
    Blood samples tubes in polystyrene tray.
    Fillet of fish on table in boat — Stock Photo
    Fillet of fish on table in boat
    Coronavirus vaccine flask near blood test and syringe on pink background covered with confetti — Stock Photo
    Coronavirus vaccine flask near blood test and syringe on pink background covered with confetti
    Macrophage foam cells containing lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells containing lipid droplets, digital illustration.
    Snake crawling on the stones — Stock Photo
    Snake crawling on the stones
    Forensic scientist at scene of crime collecting DNA sample from knife as forensic evidence. — Stock Photo
    Forensic scientist at scene of crime collecting DNA sample from knife as forensic evidence.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Laboratory technician holding plasma bags in blood bank — Stock Photo
    Laboratory technician holding plasma bags in blood bank
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Digital illustration of balls of cholesterol lipids in blood vessel. — Stock Photo
    Digital illustration of balls of cholesterol lipids in blood vessel.
    Illustration of heart and close-up of infection bacteria in male body silhouette on black background. — Stock Photo
    Illustration of heart and close-up of infection bacteria in male body silhouette on black background.
    Veterinarian in sterile gloves with surgical tweezers and scissors operating anonymous animal against heart rate monitor in hospital — Stock Photo
    Veterinarian in sterile gloves with surgical tweezers and scissors operating anonymous animal against heart rate monitor in hospital
    Doctor checking senior woman blood pressure — Stock Photo
    Doctor checking senior woman blood pressure
    Whole and half blood oranges — Stock Photo
    Whole and half blood oranges
    Digital illustration of nit egg of human head louse attached to human hair. — Stock Photo
    Digital illustration of nit egg of human head louse attached to human hair.
    Stent and balloon catheter for implantation into blood vessel, digital illustration. — Stock Photo
    Stent and balloon catheter for implantation into blood vessel, digital illustration.
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Illustration of human blood cells in blood stream. — Stock Photo
    Illustration of human blood cells in blood stream.
    Red human heart on black background, computer illustration. — Stock Photo
    Red human heart on black background, computer illustration.
    Medical illustration of blastocyst beginning implanting in the wall of the uterus — Stock Photo
    Medical illustration of blastocyst beginning implanting in the wall of the uterus
    Medical illustration of female arteries, veins and lymphatic system — Stock Photo
    Medical illustration of female arteries, veins and lymphatic system
    Donated blood in plastic bag — Stock Photo
    Donated blood in plastic bag
    Mosquito feeding on human blood, digital illustration. — Stock Photo
    Mosquito feeding on human blood, digital illustration.
    Hepatitis C virus structure, digital illustration. — Stock Photo
    Hepatitis C virus structure, digital illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    3d illustration of cross-section of human eye in side view and frontal view. — Stock Photo
    3d illustration of cross-section of human eye in side view and frontal view.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Close-up of unconscious woman fallen on ground after accident — Stock Photo
    Close-up of unconscious woman fallen on ground after accident
    Illustration of red and white blood cells in the bloodstream. — Stock Photo
    Illustration of red and white blood cells in the bloodstream.