Ключевые слова: background, bacteria, biology, blocks, concept, conception, contaminants, cubes, danger, dangerous, detecting, disease, epidemic, flu, glass, health, hygiene, idea, illness, infection, information, invisible, listeria, made, magnifying, medical, medicine, micro, microbe, microbes, microbiology, microorganism, object, organism, organisms, parasite, salmonella, syringe, text, top, toxins, view, virus, wooden, word, yellow,