Ключевые слова: 3d, alert, asia, asian, building, chinese, concept, concern, contagion, disease, downtown, hong, hongkong, infection, influenza, kong, life, mask, medical, microbe, microscopic, modern, mutation, new, organism, pandemic, pathogen, pedestrian, people, pneumonia, shopping, sickness, store, street, symptoms, tourism, travel, urban, variant, viral, virology, virus, walking, warning,