Ключевые слова: background, biology, blood, care, check, chemical, chemist, chemistry, coat, diagnostics, disease, doctor, equipment, faeces, feces, geneticist, gloves, hand, health, hospital, human, infection, lab, laboratory, liquid, medical, medicine, microbiology, people, plastic, research, saliva, sample, science, scientific, scientist, specimen, stool, technician, technology, test, tube, work,