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Cropped view of scientist holding coronavirus blood samples
Cropped view of scientist holding coronavirus blood sample
Chemist in protective uniform taking toxic liquid sample from test-tube, danger
Cropped view of scientist collecting vaccine in syringe from ampoule
Cropped view of scientist showing glass with blood drop and thumb up
Malaria test, doctor showing blood sample in tube, lab research, health checkup
Cropped view of scientist taking blue vaccine in syringe
Cropped view of scientist holding syringe and red vaccine
