Przycięty widok naukowca dodającego zieloną szczepionkę do probówek z pipetą - Materiał filmowy & wideo

Cropped view of scientist adding blue vaccine in test tubes with pipette

Close-up shot of a chemists woman hand pipetting a dangerous biological drug weapon. The concept of biological warfare and a hidden threat to humanity

Coloured liquid in test tubes in the chemical laboratory

Cropped view of scientist adding blue vaccine in test tubes with pipette

Cropped view of scientist adding coronavirus blood sample to vaccine in flask

Laboratory glassware with blood drops and coronavirus vaccine in bottles

Cropped view of scientist showing coronavirus blood samples and vaccine

African american scientist looking at sample through microscope in lab

African american scientist sitting on chair and looking at sample through microscope in lab