# Typhoid Vi Vaccine Effectiveness in Hechi, Guangxi, China

> **NCT00131833** · PHASE4 · COMPLETED · sponsor: **International Vaccine Institute** · enrollment: 96468 (—)

## Conditions studied

- Typhoid
- Paratyphoid Fever

## Interventions

- **BIOLOGICAL:** Typhoid Vi vaccine
- **BIOLOGICAL:** Meningococcal A (control)

## Key facts

- **NCT ID:** NCT00131833
- **Lead sponsor:** International Vaccine Institute
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2001-10
- **Primary completion:** 2006-11
- **Final completion:** 2006-11
- **Target enrollment:** 96468 (—)
- **Last updated:** 2008-03-13

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00131833

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00131833, "Typhoid Vi Vaccine Effectiveness in Hechi, Guangxi, China". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00131833. Licensed CC0.

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