Close up of Caucasian experienced male professional chemist in mask, gloves and white coat holding glassware with blue liquid working on antiviral covid-19 treatment development. Science concept - ストックフォト＆画像

Close up of Caucasian experienced male professional chemist in mask, gloves and white coat holding glassware with blue liquid working on antiviral covid-19 treatment development. Science concept

Close up of middle-aged Caucasian man pharmacist in goggles and gloves holding glassware with blue liquid in modern laboratory. Male medical scientist works on coronavirus cure. Chemical research

Close up of middle-aged Caucasian man pharmacist in goggles and gloves holding glassware with blue liquid in modern laboratory. Male medical scientist works on coronavirus cure. Chemical research

Close up of Caucasian experienced male professional chemist in mask, gloves and white coat holding glassware with blue liquid working on antiviral covid-19 treatment development. Science concept

Close up of concentrated Caucasian man pharmacist in goggles and mask holding flask with blue liquid cure in modern laboratory. Male medical specialist working on coronavirus cure

Caucasian male pharmacist in mask and goggles working in lab examining blue liquid in flask doing medical research, looking at camera, providing experiment in hospital laboratory, close up concept

Caucasian woman scientist in the white robe looking in the microscope while doing some investigation and her male colleague testing some liquid in tube at the laptop computer.

Caucasian handsome medical laboratory male worker doing analysis of some liquid in the test tubes while his multiethnical co-workers talking on the background.

Caucasian handsome medical laboratory male worker doing analysis of some liquid in the test tubes while his multiethnical co-workers talking on the background.

Portrait shot of the men scientist looking in the microscope while investigating something in the laboratory, while his male mixed-races co-workers talking on the background.

Portrait shot of the Caucasian man scientist looking in the microscope while investigating something in the laboratory, while his male mixed-races co-workers talking on the background.