<prompt> Battey bacillus isMycobacterium intracellulareMycobacterium lepraeMycobacterium tuberculosisMycobacterium kansai  <response>: M.intracellulare: it is commonly known as Battey bacillus because it was first identified as human pathogen at the Battey state hospital for Tuberculosis, Georgia, USA. M.intacellulare and M.avium and are so similar that they can be considered as one group, the M.avium complex MAC. They cause lymphadenopathy, pulmonary lesions or disseminated disease, paicularly in AIDS patient. Ref: Textbook of microbiology; Ananthanarayan and panikers; 10th edition; Pg: 367 