Ключевые слова: analysis, background, bacteria, bacterial, biochemistry, biology, biotechnology, black, bottle, care, chemistry, closeup, control, dish, equipment, flu, glass, health, hygiene, illness, isolated, jar, lab, laboratory, medical, medicine, microbiology, nobody, object, petri, petri dish, pharmaceutical, pharmacy, plastic, reflection, research, round, sample, sanitary, sanitary control, science, scoop, sickness, smear, stool sample, studio, testing, virus, wand,