translation.en: These are people who were perfectly healthy two or three days before, and then two days later, they can no longer breathe, and this polio virus has paralyzed not only their arms and their legs, but also their breathing muscles.
translation.zh: 这些人，两三天前还相当健康 可几天后 便丧失呼吸功能 脊髓灰质炎病毒 不仅仅瘫痪了他们的四肢 就连控制呼吸的肌肉也不放过