Ключевые слова: ache, adult, air, airplane, airport, care, caucasian, cough, disease, ebola, environment, epidemic, face, female, flight, flu, fly, girl, health, ill, illness, infection, infectious, influenza, journey, mask, medical, outbreak, pandemic, passenger, person, plane, pollution, prevention, protection, protective, safety, sick, swine, tourist, transport, transportation, travel, traveler, virus, wearing, woman, worker, young, zika,