Ключевые слова: 2019ncov, alert, attack, background, ban, canceled, cancellation, cancelled, cancelled flights, concept, concert, corona, corona virus, coronavirus, country, covid19, disease, entertainment, epidemic, event, event cancelled, festival, flu, global, government, health, illness, infect, infection, influenza, measure, medical, music, musical, outbreak, pandemic, pneumonia, protection, quarantine, respiratory, safety, sars, sickness, social distancing, spread, syndrome, viral, virus,