1882년 Robert Koch에 의해 Mycobacterium tuberculosis 발견
사람에서 사람으로 공기를 통하여 전파
인체 감염 : Mycobacterium tuberculosis Mycobacterium bovis
Nontuberculosis Mycobacterium : AIDS 등 면역부전 환자에게 결핵과 유사한 폐질환 일으킴
그람양성막대균, 항산성 막대균(acid-fast bacilli)
약간 굽거나 곧은 막
DESIGN: The initial clinical and radiographic features of 229 PTB patients were compared with those of 70 patients with NTM lung disease. The most commonly involved organisms in the NTM lung disease cases were Mycobacterium avium complex (n 38, 54%) and M. abscessus (n 26, 37%).