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Immunogenicity and safety of the Vi-CRM197 conjugate vaccine against typhoid fever in adults, children, and infants in south and southeast Asia: results from two randomised, observer-blind, age de-escalation, phase 2 trials

VaccinologyVaccine SafetyVaccinationSoutheast AsiaVi-crm197 Conjugate VaccineTyphoid FeverVaccine SurveillanceImmunologyVaccine TestingVaccine EfficacyInfection ControlMedicineVaccine ResearchEpidemiology