Ключевые слова: action, architecture, blue, bridge man made structure, building exterior, built structure, caucasian ethnicity, chinese, city, city life, cityscape, copy space, coronavirus, covid19, day, disease, epidemic, europe, event, famous place, fever, flu, group of people, health, medical, medicine, men, microbiology, outdoors, pandemic, people, police force, rear view, river, safety, sars, security, sky, standing, street, teamwork, traffic, transportation, travel destinations, unrecognizable, urban scene, vaccine, virology, virus,