Ключевые слова: airport, alert, app, asia, big, big data, china, citizen, city, concept, contagious, corona, coronavirus, covid19, crowd, data, disease, distance, emergency, epidemic, europe, flu, government, health, healthy, immune, infected, isolation, mask, outbreak, people, phone, prevention, privacy, public, quarantine, report, scanning, sick, social, spreading, spy, station, street, surveillance, technology, tracking, usa, virus, wuhan,