# Long Term Protection by and Persistence of Vi Antibodies Induced by Vi-rEPA Conjugate Vaccines in Vietnamese Children Injected at 2-5 Years or at 5-8 Years of Age

> **NCT00386789** · — · COMPLETED · sponsor: **Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)**

## Conditions studied

- Typhoid Fever

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00386789
- **Lead sponsor:** Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-10-05
- **Primary completion:** —
- **Final completion:** 2008-06-17
- **Target enrollment:** 0 (—)
- **Last updated:** 2017-07-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00386789

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00386789, "Long Term Protection by and Persistence of Vi Antibodies Induced by Vi-rEPA Conjugate Vaccines in Vietnamese Children Injected at 2-5 Years or at 5-8 Years of Age". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT00386789. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*