请观看视频,并回答下面的问题 大学英语II_专+作业视频+Environmental Protection+第2.mp4 New Words: 1. Outbreak ['aʊtbreɪk] n. (战争的)爆发;(疾病的)发作 2. Novel ['nɒv(ə)l] adj. 新型的,新颖的 3. Coronavirus [kɔrənə'vairəs] n. 冠状病毒 4. Brand new adj. 全新的,崭新的 5. Symptom ['sɪm(p)təm] n. 症状 6. Pneumonia [njuː'məʊnɪə] n. 肺炎 7. Vulnerable [ˈvʌlnərəbl] adj.易受伤害的;有弱点的;脆弱的 8. Virus ['vaɪrəs] n. 病毒 9. Transmit [trænzˈmɪt] vt. 传输;传播 10. Treatment ['triːtm(ə)nt] n. 治疗,疗法;处理 Phrases: 1. Wild animal 野生动物 2. Seafood market 海鲜市场 3. Severe cases严重病例 Please answer the following questions according to the video. 1. Where did this disease start in? What caused this disease? 2. What are the symptoms? 3. Where have the cases been confirmed so far? 4. How is this virus transmitted? 5. What treatment is available?