Ключевые слова: air pollution, city, curfew, disease, epidemic, face, female, flu, health, herd immunity, high alert, illness, infection, influenza, lockdown, mask, medical, new normal, outbreak, outdoor, pandemic, people, person, portrait, prevention, protection, protective, quarantine, respiratory, safety, sarscov2, shutdown, sick, social distancing, state of calamity, street, surgical, urban, virus, walking, wearing, winter, woman, young,