未判明病原菌的呼吸道感染症中国医科大学呼吸疾病研究所（１１０００１）康健目前，治疗呼吸系统感染性疾病时，如何选择合适的抗生素常令医生困惑。其主要原因有二：一是有基础疾病的易感染者增加；另一原因是致病菌种和耐药菌的增加。勿庸置疑，明确致病菌种并根据药敏... Respiratory Diseases Not Identified with Pathogens Institute of Respiratory Diseases, China Medical University (110001) Health At present, it is often confusing for doctors to choose appropriate antibiotics for the treatment of respiratory infections. There are two main reasons for this: one is the increase in susceptible people with underlying diseases; the other is the increase in pathogenic bacteria and drug-resistant bacteria. Undoubtedly, a clear pathogen species and according to drug sensitivity ...