<prompt> Which of the following mycobacteria can cause disease in HIVve patient with a CD4 count of 600 cu.mm?M. tuberculosisMACM. cheloneiM. fouitum  <response>: Ans. is a i.e., M. Tuberculosis . MAC infection occurs when CD4 T cells counts are 50ml, in contrast M. tuberculosis infection develops early in the course with CD4 T cells counts 300ml. 