Several reports showed the new virus attacks people differently than seasonal flu -- affecting younger people, the severely obese and seemingly healthy adults, and causing disease deep in the lungs.

• 一些报告显示，新的病毒攻击人不同于季节性流感-影响年轻人，严重肥胖，看似健康的成年人，并导致疾病的肺部深处。