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    Researcher using a light microscope for studying tube containing blood sample. — Stock Photo
    Researcher using a light microscope for studying tube containing blood sample.
    B-lymphocyte cells, computer illustration — Stock Photo
    B-lymphocyte cells, computer illustration
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand. — Stock Photo
    Technician holding blood, urine and chemistry samples for clinical testing in gloved hand.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Medical samples — Stock Photo
    Medical samples
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Test tubes with red liquid in rack. — Stock Photo
    Test tubes with red liquid in rack.
    Scientist selecting human blood sample in laboratory. — Stock Photo
    Scientist selecting human blood sample in laboratory.
    Scientists preparing multiwell plate with blood samples for testing and analysis. — Stock Photo
    Scientists preparing multiwell plate with blood samples for testing and analysis.
    Female scientist holding microscope slide with blood sample. — Stock Photo
    Female scientist holding microscope slide with blood sample.
    Researcher hand holding vacutainer tube in front of yellow tray. — Stock Photo
    Researcher hand holding vacutainer tube in front of yellow tray.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    Microscope and pile on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and pile on Petri dishes in laboratory on blue background.
    Close-up of person hand holding microscope slide with red dot. — Stock Photo
    Close-up of person hand holding microscope slide with red dot.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Illustration of blue liquid injected into bloodstream with syringe seen from inside with blood and green virus cells. — Stock Photo
    Illustration of blue liquid injected into bloodstream with syringe seen from inside with blood and green virus cells.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Close-up of blood sample in glass phial. — Stock Photo
    Close-up of blood sample in glass phial.
    Forensic scientist taking swab from blood-stained shirt as forensic evidence. — Stock Photo
    Forensic scientist taking swab from blood-stained shirt as forensic evidence.
    Petri dishes for DNA sequencing, close-up. — Stock Photo
    Petri dishes for DNA sequencing, close-up.
    Close-up of pipetting samples into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting samples into microcentrifuge tubes.
    Glass slide containing human sample under light microscope for medical testing. — Stock Photo
    Glass slide containing human sample under light microscope for medical testing.
    Vacutainer blood collection tubes, full frame. — Stock Photo
    Vacutainer blood collection tubes, full frame.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    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.
    Blood in human urine in sample pots, studio shot. — Stock Photo
    Blood in human urine in sample pots, studio shot.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Blood collection kit — Stock Photo
    Blood collection kit
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Blood samples in microcentrifuge tube strip for genetic analysis. — Stock Photo
    Blood samples in microcentrifuge tube strip for genetic analysis.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Racks of samples in test tubes and Petri dishes on laboratory table. — Stock Photo
    Racks of samples in test tubes and Petri dishes on laboratory table.
    Close-up of blood sample in kidney dish. — Stock Photo
    Close-up of blood sample in kidney dish.
    Close-up of microcentrifuge tubes with blood samples. — Stock Photo
    Close-up of microcentrifuge tubes with blood samples.
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Nurse tests a person for Covid-19. — Stock Photo
    Nurse tests a person for Covid-19.
    Stacked Petri dishes with blood samples. — Stock Photo
    Stacked Petri dishes with blood samples.
    Agar plate and specimen brush on blue background. — Stock Photo
    Agar plate and specimen brush on blue background.
    Female scientist holding tube with blood sample. — Stock Photo
    Female scientist holding tube with blood sample.