Ключевые слова: analyzing, biochemistry, biology, biotechnology, blood, centrifuge, chemical, chemist, chemistry, clinical, covid, cropped, discovery, drug, examining, experiment, gloves, hands, healthcare, hospital, indoor, lab, laboratory, liquid, machine, mask, medical, medicine, microbiology, nurse, one person, person, pharmacy, practitioner, protection, research, sample, science, scientific, scientist, specialist, staff, sterile, studying, technician, technology, test, tube, unrecognizable,