<prompt> Most common oppounistic infection in AIDS worldwide is:-TuberculosisCandidaHistoplasmosisPneumocystis carinii pneumonia  <response>: AIDS:- - Caused by HIV . - Mode of transmission - Sexual, blood, needlesyringes, veical. - Prevalence - 0.22. - MC age group affected - 30-44yrs. - MC oppounistic infection in AIDS:- World : Pneumocystis carinii pneumonia. India: Tuberculosis. 