pathogenic organisms of respiratory tract

例句：

1. 1. The study found that the pathogenic organisms of respiratory tract were responsible for many cases of pneumonia.
   研究发现，呼吸道病原体是许多肺炎病例的罪魁祸首。
2. 2.The doctor diagnosed her with a common cold and prescribed antibiotics to treat the pathogenic organisms of respiratory tract.
   医生诊断她得了普通感冒，并开了抗生素来治疗呼吸道病原体。
3. 3. In order to prevent the spread of infectious diseases, it is important to identify and eliminate the pathogenic organismsof respiratory tract.
   为了预防传染病的传播，识别并消除呼吸道病原体至关重要。