Ключевые слова: 2019ncov, arm, bacteria, button, care, close, concept, contact, control, corona, corona virus, coronavirus, covid, covid19, dirty buttons, disease, elevator, epidemic, germs, hand, health, hygiene, infected, infection, lift, method, pandemic, press, pressing, prevention, protect, protection, public, push, quarantine, safety, touch, up, virus, virus protection,