# Vaccine Ontology (VO)

> A biomedical ontology in the vaccine domain

- Page: https://library.schematica.io/model/1af8fdefabbe4f4eb66f0669613d85df
- Model type: Ontology
- License: CC BY 4.0
- Access type: Free
- Access method: Download
- Model size: Huge
- Formats: OWL
- Domains: Healthcare
- External link: https://bioportal.bioontology.org/ontologies/VO
- Contact: Yongqunh He (yongqunh@med.umich.edu)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | VO |
| Description | A biomedical ontology in the vaccine domain |
| Format | OWL |
| Categories | Health, All Organisms, Immunology |
| Groups | OBO Foundry |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 14,510 |
| Individuals | 590 |
| Properties | 122 |
| Max Depth | 23 |
| Max Child Count | 1,952 |
| Average Child Count | 5 |
| Classes With One Child | 1,987 |
| Classes With More Than 25 Children | 114 |
| Classes With No Definition | 10,286 |

## Projects using VO

- [Epidemic Marketplace](https://bioportal.bioontology.org/projects/Epiwork)
- [Influenza Ontology](https://bioportal.bioontology.org/projects/IO)
- [Country Ontology](https://bioportal.bioontology.org/projects/CO)

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Source: https://library.schematica.io/model/1af8fdefabbe4f4eb66f0669613d85df