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    School in Village of Himba tribe — Stock Photo
    School in Village of Himba tribe
    Professor giving exam results to university students — Stock Photo
    Professor giving exam results to university students
    Caring woman using pulse oximeter on finger of ill boy in oxygen mask using nebulizer during inhalation at home — Stock Photo
    Caring woman using pulse oximeter on finger of ill boy in oxygen mask using nebulizer during inhalation at home
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Physician measuring thigh circumference with tape measure on male athlete. — Stock Photo
    Physician measuring thigh circumference with tape measure on male athlete.
    Hospital radiologist pointing at CT scans. — Stock Photo
    Hospital radiologist pointing at CT scans.
    Water department engineer standing in chemical treatment room — Stock Photo
    Water department engineer standing in chemical treatment room
    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
    Senior woman using spirometer, measuring lung capacity and peak expiratory force. — Stock Photo
    Senior woman using spirometer, measuring lung capacity and peak expiratory force.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Podiatrist examining and treating patient — Stock Photo
    Podiatrist examining and treating patient
    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
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Girl holding test tubes with chemicals — Stock Photo
    Girl holding test tubes with chemicals
    Preteen boy undergoing lung function test with female nurse. — Stock Photo
    Preteen boy undergoing lung function test with female nurse.
    Workers in protective suits using machinery in fiber optics research and testing laboratory — Stock Photo
    Workers in protective suits using machinery in fiber optics research and testing laboratory
    Biologist pouring soil with spatula from sample bag into separated containers. — Stock Photo
    Biologist pouring soil with spatula from sample bag into separated containers.
    Doctor testing patient blood sugar for diabetes in examination room — Stock Photo
    Doctor testing patient blood sugar for diabetes in examination room
    Low angle portrait of female mechanic wearing respirator using spray pistol — Stock Photo
    Low angle portrait of female mechanic wearing respirator using spray pistol
    Female scientist in white coat taking notes in soil testing laboratory. — Stock Photo
    Female scientist in white coat taking notes in soil testing laboratory.
    Female college students conducting scientific experiment in science laboratory classroom — Stock Photo
    Female college students conducting scientific experiment in science laboratory classroom
    Optometrist examining patient eyes with phoropter in clinic — Stock Photo
    Optometrist examining patient eyes with phoropter in clinic
    Black woman in optometry cabinet during study of the eyesight — Stock Photo
    Black woman in optometry cabinet during study of the eyesight
    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
    Scientific laboratory researcher using test tube while experiment. — Stock Photo
    Scientific laboratory researcher using test tube while experiment.
    Professional home care assistant in protective uniform and mask examining senior woman and checking blood pressure while visiting patient at home during coronavirus outbreak — Stock Photo
    Professional home care assistant in protective uniform and mask examining senior woman and checking blood pressure while visiting patient at home during coronavirus outbreak
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Girl student conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student conducting scientific experiment in laboratory classroom
    White mask with reusable KN95 protection index for virus protection on yellow background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on yellow background
    Closeup view of empty laboratory beakers — Stock Photo
    Closeup view of empty laboratory beakers
    Test tube with blue chemical fluid placed in cold water in glass jar in modern equipped laboratory — Stock Photo
    Test tube with blue chemical fluid placed in cold water in glass jar in modern equipped laboratory
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Coffee roasters testing coffee — Stock Photo
    Coffee roasters testing coffee
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Petri dishes with colorful liquids for microbiology research. — Stock Photo
    Petri dishes with colorful liquids for microbiology research.
    Agronomy specialist taking soil sample for fertility analysis. — Stock Photo
    Agronomy specialist taking soil sample for fertility analysis.
    Lab chemist handling water sample — Stock Photo
    Lab chemist handling water sample
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Red currant berries in test tube, studio shot. — Stock Photo
    Red currant berries in test tube, studio shot.
    Female scientist with test tubes researching coronavirus vaccine — Stock Photo
    Female scientist with test tubes researching coronavirus vaccine
    Pensive female college student taking test in classroom — Stock Photo
    Pensive female college student taking test in classroom
    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
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Blood samples in syringes on white background. — Stock Photo
    Blood samples in syringes on white background.
    Woman sitting on sofa and looking down at pregnancy test. — Stock Photo
    Woman sitting on sofa and looking down at pregnancy test.
    Female doctor performing allergy skin prick test on little boy arm. — Stock Photo
    Female doctor performing allergy skin prick test on little boy arm.
    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.
    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
    Close-up of man testing temperature of beer in wort while making beer at home brewery — Stock Photo
    Close-up of man testing temperature of beer in wort while making beer at home brewery
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Doctors using x-ray machine to examining patient in hospital — Stock Photo
    Doctors using x-ray machine to examining patient in hospital
    Crop medic applying electrodes on chest of unrecognizable male patient in mask for ECG test — Stock Photo
    Crop medic applying electrodes on chest of unrecognizable male patient in mask for ECG test
    Lab technician picking up samples — Stock Photo
    Lab technician picking up samples
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Scientist holding test tubes with liquids in hand — Stock Photo
    Scientist holding test tubes with liquids in hand
    Optical probe using for measuring of computer keyboard. — Stock Photo
    Optical probe using for measuring of computer keyboard.
    Nurse applying plaster to girl hand. — Stock Photo
    Nurse applying plaster to girl hand.
    Hands of an unrecognizable female doctor holding a coronavirus vaccine vial — Stock Photo
    Hands of an unrecognizable female doctor holding a coronavirus vaccine vial
    Microorganisms culture growing in petri dish, full frame. — Stock Photo
    Microorganisms culture growing in petri dish, full frame.
    Petri dish with bacteria — Stock Photo
    Petri dish with bacteria