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Impact of vector-priming on the immunogenicity of a live recombinant Salmonella enterica serovar typhi Ty21a vaccine expressing urease A and B from Helicobacter pylori in human volunteers

VaccinationVaccine DevelopmentTyphoid FeverPathogenesisImmunologyHuman VolunteersUrease AMicrobiologyInfection ControlPolyvalent VaccineMedicineVaccine ResearchHelicobacter Pylori