translation.en: Eighty percent of what walked in the door, in terms of illness, was infectious disease -- third world, developing world infectious disease, caused by a poor living environment.
translation.zh: 他看过的百分之八十的病例， 都是传染性疾病—— 第三世界，或是发展中国家典型的、 因恶劣生活环境而引起的传染性疾病。