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    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Close-up of male scientist pipetting into test tubes. — Stock Photo
    Close-up of male scientist pipetting into test tubes.
    Labeled medical samples in rack, close-up. — Stock Photo
    Labeled medical samples in rack, close-up.
    Optician adjusting trial frame for eye examination preteen girl. — Stock Photo
    Optician adjusting trial frame for eye examination preteen girl.
    Blood agar in Petri dish on blue background. — Stock Photo
    Blood agar in Petri dish on blue background.
    Female patient receiving a ultrasound scan on the neck in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the neck in hospital
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Female scientist in clean suit with test tubes studying coronavirus — Stock Photo
    Female scientist in clean suit with test tubes studying coronavirus
    PCR tubes with orange, green and purple samples, full frame. — Stock Photo
    PCR tubes with orange, green and purple samples, full frame.
    Urine sample with test strip on white background. — Stock Photo
    Urine sample with test strip on white background.
    White mask with reusable KN95 protection index for virus protection on red background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on red background
    Blood sample awaiting testing in laboratory, close-up with selective focus. — Stock Photo
    Blood sample awaiting testing in laboratory, close-up with selective focus.
    Patient discussing with optometrist over digital screen in clinic — Stock Photo
    Patient discussing with optometrist over digital screen in clinic
    Female immunologist performing skin prick allergy testing on preschooler boy. — Stock Photo
    Female immunologist performing skin prick allergy testing on preschooler boy.
    Lingon berry jam being made, setting test — Stock Photo
    Lingon berry jam being made, setting test
    Young asian college students throwing paper in the air — Stock Photo
    Young asian college students throwing paper in the air
    University student doing experiment on microscope in laboratory at college — Stock Photo
    University student doing experiment on microscope in laboratory at college
    Little boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Little boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Dentist and dental assistant looking at medical x-ray. — Stock Photo
    Dentist and dental assistant looking at medical x-ray.
    Serious male worker examining juice in factory — Stock Photo
    Serious male worker examining juice in factory
    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
    DNA home test kit. — Stock Photo
    DNA home test kit.
    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
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    Hand holding a multiwell tray containing blood samples. — Stock Photo
    Hand holding a multiwell tray containing blood samples.
    Senior woman undergoing an x-ray test in hospital — Stock Photo
    Senior woman undergoing an x-ray test in hospital
    Gloved hand holding blood sample in test tube. — Stock Photo
    Gloved hand holding blood sample in test tube.
    Unrecognizable man at Surfs up ledge, Bugaboos, British Columbia, Canada. — Stock Photo
    Unrecognizable man at Surfs up ledge, Bugaboos, British Columbia, Canada.
    Plant biotechnology and research — Stock Photo
    Plant biotechnology and research
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory — Stock Photo
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory
    France, New Aquitaine, Arcachon Bay, La Teste de Buch, Bordes salt marsh, installation for 'Chasse la tonne' (Duck hunting) — Stock Photo
    France, New Aquitaine, Arcachon Bay, La Teste de Buch, Bordes salt marsh, installation for 'Chasse la tonne' (Duck hunting)
    Dentist looking at dental x-ray plate in clinic — Stock Photo
    Dentist looking at dental x-ray plate in clinic
    Chemist setting up vacuum pump in pharmaceutical laboratory. — Stock Photo
    Chemist setting up vacuum pump in pharmaceutical laboratory.
    Back view of unrecognizable female doctor looking through modern microscope while at sample while working in modern clinic — Stock Photo
    Back view of unrecognizable female doctor looking through modern microscope while at sample while working in modern clinic
    Researcher using a light microscope for studying tube containing blood sample. — Stock Photo
    Researcher using a light microscope for studying tube containing blood sample.
    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    Close-up of optometrist examining patient eyes with eye test equipment in clinic — Stock Photo
    Close-up of optometrist examining patient eyes with eye test equipment in clinic
    Urine sample and diagnostic dipstick on surgical tray. — Stock Photo
    Urine sample and diagnostic dipstick on surgical tray.
    Water department technician coiling hose used to flush hydrant — Stock Photo
    Water department technician coiling hose used to flush hydrant
    Close-up of hand adjusting tap on burette tube in pharmaceutical laboratory. — Stock Photo
    Close-up of hand adjusting tap on burette tube in pharmaceutical laboratory.
    Blood sample in test tube in hand of scientist. — Stock Photo
    Blood sample in test tube in hand of scientist.
    Male doctor examining patient in hospital — Stock Photo
    Male doctor examining patient in hospital
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    Test tubes with red liquid in rack. — Stock Photo
    Test tubes with red liquid in rack.
    Woman sitting on bed and checking pregnancy test — Stock Photo
    Woman sitting on bed and checking pregnancy test
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Coworkers checking results while testing food quality in canteen kitchen — Stock Photo
    Coworkers checking results while testing food quality in canteen kitchen
    Optometrist examining patient eyes with eye test equipment in clinic — Stock Photo
    Optometrist examining patient eyes with eye test equipment in clinic
    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 trowel with soil above samples separated in containers. — Stock Photo
    Close-up of trowel with soil above samples separated in containers.
    Black women and man in uniform discussing data on computer while working in contemporary laboratory together — Stock Photo
    Black women and man in uniform discussing data on computer while working in contemporary laboratory together
    Various dried fruits in test tubes over white surface — Stock Photo
    Various dried fruits in test tubes over white surface
    Syringe dripping blood sample into multiwell tray. — Stock Photo
    Syringe dripping blood sample into multiwell tray.
    Different chemicals in lab — Stock Photo
    Different chemicals in lab
    Collage of crowd masks protecting factor KN95 on a red background overhead view — Stock Photo
    Collage of crowd masks protecting factor KN95 on a red background overhead view
    Closeup view of scientist analyzing bacterial colonies — Stock Photo
    Closeup view of scientist analyzing bacterial colonies
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Female chemist setting up vacuum pump in laboratory, close-up — Stock Photo
    Female chemist setting up vacuum pump in laboratory, close-up