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    Cropped unrecognizable doctor's hands throwing confetti on negative coronavirus blood test on pink background — Stock Photo
    Cropped unrecognizable doctor's hands throwing confetti on negative coronavirus blood test on pink background
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    Young asian college students studying together — Stock Photo
    Young asian college students studying together
    Chinese woman taking test drive with car dealer assistance — Stock Photo
    Chinese woman taking test drive with car dealer assistance
    Curious kids watching multicolor foam in beakers — Stock Photo
    Curious kids watching multicolor foam in beakers
    Podiatrist making procedure with patient — Stock Photo
    Podiatrist making procedure with patient
    Scientist experimenting with cultures in petri dishes with biohazard warning in microbiology lab. — Stock Photo
    Scientist experimenting with cultures in petri dishes with biohazard warning in microbiology lab.
    Close-up of sample tubes with medical samples. — Stock Photo
    Close-up of sample tubes with medical samples.
    Forensic evidence collection with knife for DNA forensic test. — Stock Photo
    Forensic evidence collection with knife for DNA forensic test.
    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Close-up of rack of sample tubes with blood for analysis. — Stock Photo
    Close-up of rack of sample tubes with blood for analysis.
    Various food produce in test tubes, studio shot. — Stock Photo
    Various food produce in test tubes, studio shot.
    DNA test result on microcentrifuge tube with DNA sample in scientist hand. — Stock Photo
    DNA test result on microcentrifuge tube with DNA sample in scientist hand.
    Scared boy looking at dental drill in dentist hand. — Stock Photo
    Scared boy looking at dental drill in dentist hand.
    Anonymous African American male in uniform with stethoscope showing blurred vaccine in hand in hospital — Stock Photo
    Anonymous African American male in uniform with stethoscope showing blurred vaccine in hand in hospital
    Close-up of pipetting samples into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting samples into microcentrifuge tubes.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    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
    Lab technician igniting Bunsen burner — Stock Photo
    Lab technician igniting Bunsen burner
    Close-up of multiple test stick being placed into urine sample tube by female doctor. — Stock Photo
    Close-up of multiple test stick being placed into urine sample tube by female doctor.
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge. — Stock Photo
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge.
    Medical sample tube labelled with bar code. — Stock Photo
    Medical sample tube labelled with bar code.
    Cropped view of scientist hands pipetting sample for biological research. — Stock Photo
    Cropped view of scientist hands pipetting sample for biological research.
    Female scientist in clean suit examining test tubes — Stock Photo
    Female scientist in clean suit examining test tubes
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Young asian college student posing at campus — Stock Photo
    Young asian college student posing at campus
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Female teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and students conducting scientific experiment in laboratory classroom
    Scientist hand carrying bacteria colonies growing in Petri dish. — Stock Photo
    Scientist hand carrying bacteria colonies growing in Petri dish.
    Doctor with test tubes in hospital — Stock Photo
    Doctor with test tubes in hospital
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    Young asian college students studying together — Stock Photo
    Young asian college students studying together
    Graduated pipette and test tubes — Stock Photo
    Graduated pipette and test tubes
    Racks of test tubes with red lids on blue table. — Stock Photo
    Racks of test tubes with red lids on blue table.
    Woman using microscope near colleagues in laboratory — Stock Photo
    Woman using microscope near colleagues in laboratory
    Woman biologist in white coat pouring liquid from test tube into labelled containers with soil. — Stock Photo
    Woman biologist in white coat pouring liquid from test tube into labelled containers with soil.
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge. — Stock Photo
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge.
    Ophthalmologist placing phoropter in front of a female patient — Stock Photo
    Ophthalmologist placing phoropter in front of a female patient
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    School in Village of Maasai tribe — Stock Photo
    School in Village of Maasai tribe
    Back view of anonymous group of professional doctors in protective suits transporting patient with virus infection to hospital — Stock Photo
    Back view of anonymous group of professional doctors in protective suits transporting patient with virus infection to hospital
    Scientist holding DNA sample in tube with autoradiograph on DNA gel. — Stock Photo
    Scientist holding DNA sample in tube with autoradiograph on DNA gel.
    Monitoring respiratory illness with digital spirometer. — Stock Photo
    Monitoring respiratory illness with digital spirometer.
    Close-up of tube and syringe in hematology laboratory with scientist in background. — Stock Photo
    Close-up of tube and syringe in hematology laboratory with scientist in background.
    Optometrist explaining eyesight report on autorefractors screen in clinic — Stock Photo
    Optometrist explaining eyesight report on autorefractors screen in clinic
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Curious boy using pipette in beaker at interactive exhibit in science center — Stock Photo
    Curious boy using pipette in beaker at interactive exhibit in science center
    Petri dish with bacteria — Stock Photo
    Petri dish with bacteria
    Two scientists doing experiment in lab — Stock Photo
    Two scientists doing experiment in lab
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start — Stock Photo
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start
    Motorcycle mechanic doing diagnostic test on motorcycle in workshop — Stock Photo
    Motorcycle mechanic doing diagnostic test on motorcycle in workshop
    Young asian college students studying together — Stock Photo
    Young asian college students studying together
    Glass phials in laboratory rack, close-up. — Stock Photo
    Glass phials in laboratory rack, close-up.
    Laboratory technician using digital tablet in blood bank — Stock Photo
    Laboratory technician using digital tablet in blood bank
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    Scientist pipetting solution into the glass test tube at lab — Stock Photo
    Scientist pipetting solution into the glass test tube at lab
    Athlete riding an exercise bike — Stock Photo
    Athlete riding an exercise bike
    Scientist hands holding urine sample in container and chart, studio shot. — Stock Photo
    Scientist hands holding urine sample in container and chart, studio shot.