<prompt> Drug of choice for syphilis -PenicillinRifampicinTetracyclineErythromycin  <response>: Ans. is a i.e.. Penicillin InfectionChemoprophylaxis DOCInfectionChemoprophylaxis DOCo Cholera -TetracyclineMeningococci -Rifampicin sulfadiazineo Plague -Tetracycline if strain is sensitiveo P.carinii -CotrimoxazoleDiphtheria -Erythromycino Whooping cough -ErythromycinBacterial conjuctivits -Erythromycin ointmento Toxoplasmosis -CotrimoxazoleTB -INHo Influenza -AmantadineMAC -Clarithromycin.Azithromycino Rickettsia -TetracyclinesMalaria -Chloroquineo Bird flu- OseltamivirSurgical prophylaxis -Cefazolino Gonorrhoessyphilis-Procaine penicillin 