Ключевые слова: adult, authentic, candid, care, chemistry, closeup, coat, copyspace, corona, covid, day, employee, ethnic, expert, face, female, glasses, gloves, goggles, health, inside, job, lab, laboratory, mask, medical, microscope, modern, natural, people, person, professional, protection, real, research, safety, science, scientist, staff, technician, test, uniform, vaccine, virus, woman, work, worker, working, workplace, young,