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    Rack of food samples in test tubes. — Stock Photo
    Rack of food samples in test tubes.
    Using pulse oximeter at home to test oxygen level in blood. — Stock Photo
    Using pulse oximeter at home to test oxygen level in blood.
    Cervical screening test equipment on white background. — Stock Photo
    Cervical screening test equipment on white background.
    Light microscope with petri dishes on blue background. — Stock Photo
    Light microscope with petri dishes on blue background.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Blood samples with DNA molecule in centrifuge, genetic research conceptual digital illustration. — Stock Photo
    Blood samples with DNA molecule in centrifuge, genetic research conceptual digital illustration.
    Female doctor preparing to do a pcr test — Stock Photo
    Female doctor preparing to do a pcr test
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Portrait confident young man with learners permit leaning against car — Stock Photo
    Portrait confident young man with learners permit leaning against car
    Various food produce in test tubes, studio shot. — Stock Photo
    Various food produce in test tubes, studio shot.
    Close-up of microcentrifuge tubes with biologist in background. — Stock Photo
    Close-up of microcentrifuge tubes with biologist in background.
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital — Stock Photo
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital
    Female scientists working in laboratory. — Stock Photo
    Female scientists working in laboratory.
    Female patient undergoing an x-ray test in the hospital — Stock Photo
    Female patient undergoing an x-ray test in the hospital
    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Doctor looking at ultrasound scan machine in hospital — Stock Photo
    Doctor looking at ultrasound scan machine in hospital
    Female patient undergoing an x-ray test in the hospital — Stock Photo
    Female patient undergoing an x-ray test in the hospital
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Petri dish with bacteria — Stock Photo
    Petri dish with bacteria
    Scientists experimenting together in laboratory — Stock Photo
    Scientists experimenting together in laboratory
    Test tubes with urine samples for analysis, studio shot. — Stock Photo
    Test tubes with urine samples for analysis, studio shot.
    Side view of male scientist experimenting in laboratory — Stock Photo
    Side view of male scientist experimenting in laboratory
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Podiatrist examining and treating patient — Stock Photo
    Podiatrist examining and treating patient
    Middle-aged woman on an open MRI machine waiting for the test to begin — Stock Photo
    Middle-aged woman on an open MRI machine waiting for the test to begin
    Focused male scientist with test tube researching coronavirus — Stock Photo
    Focused male scientist with test tube researching coronavirus
    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
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office.
    Anonymous African American professional doctor in medical gloves demonstrating vaccine online in video call in soft focus — Stock Photo
    Anonymous African American professional doctor in medical gloves demonstrating vaccine online in video call in soft focus
    Modern vision test equipment and chair against white wall in optician office in clinic — Stock Photo
    Modern vision test equipment and chair against white wall in optician office in clinic
    Modern vision test equipment and chair against white wall in optician office in clinic — Stock Photo
    Modern vision test equipment and chair against white wall in optician office in clinic
    Home care specialist checking blood pressure of patient at home — Stock Photo
    Home care specialist checking blood pressure of patient at home
    Female scientist removing medical samples from machine in lab — Stock Photo
    Female scientist removing medical samples from machine in lab
    Water treatment plant ultraviolet ionization treatment room — Stock Photo
    Water treatment plant ultraviolet ionization treatment room
    Female microbiologist pipetting into petri dishes in laboratory. — Stock Photo
    Female microbiologist pipetting into petri dishes in laboratory.
    Close-up of male scientist pipetting into test tubes. — Stock Photo
    Close-up of male scientist pipetting into test tubes.
    Test tubes with urine samples for analysis, studio shot. — Stock Photo
    Test tubes with urine samples for analysis, studio shot.
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak — Stock Photo
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak
    African American male doctor in medical glove demonstrating test tube with blood sample on white background — Stock Photo
    African American male doctor in medical glove demonstrating test tube with blood sample on white background
    Rear view of doctor examining stomach of his patient — Stock Photo
    Rear view of doctor examining stomach of his patient
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic. — Stock Photo
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic.
    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
    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.
    Optometrist examining patient eyes with ophthalmoscope in clinic — Stock Photo
    Optometrist examining patient eyes with ophthalmoscope in clinic
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab — Stock Photo
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab
    University student doing experiment on microscope in laboratory at college — Stock Photo
    University student doing experiment on microscope in laboratory at college
    Ophthalmologist helping boy wearing glasses while eye examination in clinic. — Stock Photo
    Ophthalmologist helping boy wearing glasses while eye examination in clinic.
    Athlete riding an exercise bike — Stock Photo
    Athlete riding an exercise bike
    Medical healthcare technologist holding COVID-19 swab collection kit, — Stock Photo
    Medical healthcare technologist holding COVID-19 swab collection kit,
    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
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab — Stock Photo
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab
    Close-up shot of doctor examining belly of pregnant woman with ultrasound — Stock Photo
    Close-up shot of doctor examining belly of pregnant woman with ultrasound
    Optometry devices closeup view — Stock Photo
    Optometry devices closeup view
    Scientists preparing multiwell plate with blood samples for testing and analysis. — Stock Photo
    Scientists preparing multiwell plate with blood samples for testing and analysis.
    School in Grashoek village — Stock Photo
    School in Grashoek village
    From above of crop anonymous student with pencil in hand working with dental model and papers during dentistry class — Stock Photo
    From above of crop anonymous student with pencil in hand working with dental model and papers during dentistry class