<prompt> A 25-year-old IV drug abuser presents with fever for 3 weeks. ECHO shows tricuspid vegetation. The most likely organism associated with endocarditis in this case is:Staph. aureusCandida albicansPseudomonaStrep. viridans  <response>: Ans. a Staph. aureus Endocarditis in IV drugs addicts Right sided more common Left sided Staph. aureus Varied Stapti, aureus, enterobacter, polymicrobial 