Most common agent causing tuberculosis in AIDS patient in tropical countrie is -: (A) Mycobacterium tubercolusis, (B) Mycobacterium intracellulare, (C) Mycobacteriumparvum, (D) Mycobacterium atypical
Answer is A. In the USA and other Western countries the characteristic pathogen now is M.tuberculosis. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-576