我国结核病的疫情状况tuberculosisetiologyEpidemiologyEpidemiologypathogenesypathogenesydiagnosediagnosediagnosediagnosisdiagnosisdiagnosisdiagnosisdiagnosisdiagnosisdiagnosistuberculotherapytuberculotherapytuberculotherapytuberculotherapy化疗方案化疗方案antituberculosisdrugsTuberculosispreventionTuberculosispreventionTuberculosisprevention原发性肺结核（primarypulmonarytuberculosis)primarypulmonarytuberculosisprimarypulmonarytuberculosisprimarypulmonarytuberculosisprimarypulmonarytuberculosis治疗结核活动参考指标primarypulmonarytuberculosisconclusion