<prompt> Which of the following infectious disease is treated using multidrug therapy?SyphilisLeprosyTyphoidNone of the above  <response>: Among the options given in the question, multidrug therapy is indicated in the treatment of leprosy. Rifampicin, Dapsone and Clofazimine are drugs used in its treatment. Reference: Essentials of Medical Pharmacology by K D Tripathi, 5e page 713. 