肺炎杆菌

例句：

1. 1. The bacteria responsible for pneumonia are spread through coughing and sneezing.
   引起肺炎的细菌通过咳嗽和打喷嚏传播。
2. 2. Doctors use antibiotics to treat pneumonia in children.
   医生使用抗生素治疗儿童的肺炎。
3. 3. Pneumonia is a serious disease that can be life-threatening if left untreated.
   肺炎是一种严重的疾病，如果不及时治疗可能会危及生命。