Drug of choice for carriers of diphtheria is: (A) Penicillin G, (B) Septran, (C) Tetracycline, (D) Erythromycin
Answer is D. Corynebacterium diphtheriae is sensitive to Penicillin and can be cleared from the throat within a few days by Penicillin treatment. Erythromycin is more active than Penicillin in the treatment of carriers. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 245