Ключевые слова: air, allergy, asia, asian, background, bangkok, care, city, cold, cough, coughing, danger, environment, epidemic, face, filter, flu, headache, health, healthcare, human, ill, illness, industrial, infection, influenza, male, man, mask, medical, mouth, outdoor, people, person, pollution, prevention, protect, protection, safety, sick, smog, southeast asia, thailand, urban, virus, wear, wearing, young,