<prompt> Which among the following is vaccine for cholera?PPV23DukoralTy 21 a vaccineJE-MB Nakayama  <response>: Ans. b DukoralRef: Nelson 18th ed chapter 173, eidarticle1711 11-0822 article Dukoral is indicated for active immunization against disease caused by Vibrio choleraes ero group Ol in adults and children from 2 years of age who will be visiting endemicepidemic areas The standard primary course of vaccination with Dukoral against cholera consists of 2 doses for adults and children from 6 years of age. Children 2 to below 6 years of age should receive 3 doses. Doses are to be administered at intervals of at least one week. If more than 6 weeks have elapsed between doses, the primary immunization course should be re-started. Immunization should be completed at least 1 week prior to potential exposure to V. cholerae Ol. 