Ключевые слова: abstract, advertising, baner, bankruptcy, business, caf, care, closed, concept, coronavirus, covid19, dangerous, death, diagnosis, doctor, epidemic, global, health, healthcare, hospital, infection, influenza, information, laboratory, marketing, medicine, message, pandemic, panic, patient, pneumonia, prevention, protection, quarantine, research, respiratory, restaurant, risk, science, security, shop, sick, sign, stop, store, symbol, text, vaccine, virus,