spreading gangren

例句：

1. 1. The infection has spread throughout the hospital, causing widespread concern.
   这种感染已经在整个医院传播开来，引起了广泛的担忧。
2. 2.The patient's condition worsened rapidly, and it was clear that he needed immediate medical attention.
   患者的病情迅速恶化，很明显他需要立即医疗关注。
3. 3. The doctors were forced to treat the patient with antibiotics, hoping to prevent further spread of the infection.
   医生们被迫用抗生素治疗患者，希望防止感染进一步扩散。