Ключевые слова: 2019ncov, alert, cancel, cinema, classroom, concept, concert, corona, coronavirus, covid, covid19, current events, danger, dangerous, economy, education, epidemic, event, festival, flu, health, healthcare and medicine, help, hospital, hygiene, infection, influenza, learning, lesson, medical, medicals, medicine, pandemic, performance, quarantine, reminder, respiratory, safety, school, science, sign, studying, symptom, syndrome, theater, vaccine, virus,