Typhoid fever in the previously immunised.
D006801:Humans; D007115:Immunization Schedule; D007194:India; D007391:International Cooperation; D014435:Typhoid Fever / Q000453:epidemiology / Q000276:immunology*; D014436:Typhoid-Paratyphoid Vaccines / Q000008:administration & dosage; D014838:Volunteers
D014436:Typhoid-Paratyphoid Vaccines