Focused shot of young girl wearing face mask in classroom during school lesson
Focused shot of young girl in glasses and face mask learning in classroom with classmates
Selective focus of nurse explaining to mature blood donor
Selective focus medium close-up of female practitioner wearing protective mask reading X-ray images
Close up selective focus shot of African American scientist in protective face mask and glasses working with microscope in laboratory
Selective focus of unrecognizable Indian male nurse wearing protective mask on face attending medical course writing something in notebook
Selective focus shot of female scientist in protective mask and glasses pouring blue liquid in test tubes with pipette during microbiology experiment in laboratory
Female teacher in protective face mask measuring temperature of multiethnic students with digital infrared thermometer as they walking in classroom before lesson in high school
Focused shot of young boy in face mask at desk in classroom, posing for school lesson
African American male teacher and group of multiethnic schoolchildren in protective face masks looking together at camera while posing in classroom during coronavirus outbreak
afro male teacher wearing medical mask for covid19 with schoolboy in classroom