Ключевые слова: background, bacteria, beige, biology, color, colorful, concept, contaminants, cubes, danger, dangerous, disease, dishes, epidemic, face, flat, germs, health, hygiene, illness, infection, invisible, lay, listeria, made, masks, medical, medicine, microbe, microbes, microbiology, microorganism, object, organism, organisms, parasite, petri, pills, salmonella, spread, top, toxins, view, virus, wooden, word,