Ключевые слова: airline, airplane, airport, aviation, bacteria, biohazard, cancellation, cancelled, caution, clinical, covid19, danger, disease, epidemic, europe, flight, flu, global, hazard, health, infected, infection, information, medical, medicine, mers, outbreak, pandemic, protection, quarantine, respiratory, risk, sars, science, sign, stop, syndrome, transport, travel, usa, virus, warning, world,