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VaxSEA Data Sources

VaxSEA integrates vaccine-related experimental, assay, subject, sample, intervention, and result metadata from multiple public biomedical resources. The goal is to provide a searchable view across heterogeneous datasets while preserving links back to the original data sources whenever possible.

Because each source uses its own accession system and file-access policies, VaxSEA stores both local VaxSEA identifiers and original source identifiers such as SDY, SUB, GSE, GSM, and GPL.

Primary Data Sources

Source Role in VaxSEA Common Identifiers External Resource
ImmPort Source of immunology study metadata, clinical study descriptions, subject/sample/intervention metadata, assay metadata, and result-file references. SDY study accessions
SUB subject accessions
ARM study arms/groups
PV planned visits/experiments
BS biosamples
ES experiment samples
SFL study files/documentation
ImmPort
Some ImmPort files may require user access or may be represented in VaxSEA as file references rather than direct public downloads.
VIGET Source of vaccine-induced host gene-expression study metadata and integrated expression-analysis references. VIGET study mappings
ImmPort SDY accessions
GEO expression identifiers
VIGET publication
VIGET Zenodo record
Publication: Brunson et al., Frontiers in Immunology, 2023. PMID: 37180100.
GEO Source repository for gene-expression datasets, sample records, and platform records referenced by VIGET and related studies. GSE GEO Series
GSM GEO Sample
GPL GEO Platform
NCBI Gene Expression Omnibus
PubMed Source of publication metadata and citations linked to VaxSEA documentation records. PMID identifiers PubMed
Biomedical Ontologies Provide controlled terminology for assays, vaccines, organisms, units, diseases, phenotypes, study types, and related biomedical concepts. OBI, VO, NCIT, EFO, DOID, UO, PATO, SWO OBO Foundry
NCBO BioPortal

Identifier Guide

Identifier Pattern Meaning Example Use in VaxSEA
IMMP... Local VaxSEA/ImmPort-style imported identifier Used internally in VaxSEA for imported ImmPort rows. Example: IMMP100.
SDY... ImmPort study accession Stored as a source study accession, often in study.reference_source_id.
PV... ImmPort planned visit / experiment accession Used to connect experiments, subjects, samples, and visit-level metadata.
SUB... ImmPort subject accession Used to connect subject metadata, samples, interventions, and some result records.
ARM... ImmPort study arm or group accession Used for group or arm-level subject/sample/result organization.
BS... ImmPort biosample accession Identifies biological samples collected from subjects.
ES... ImmPort experiment sample accession Frequently used to connect sample records to result records.
GSE... GEO Series accession Represents a GEO expression dataset or study-level expression series.
GSM... GEO Sample accession Represents a specific GEO sample, often linked to expression results.
GPL... GEO Platform accession Represents a microarray or sequencing platform.

How VaxSEA Integrates Source Data

VaxSEA imports data from heterogeneous sources that do not always use the same primary keys. For example, VIGET data may use local numeric identifiers consistently, while ImmPort-style imports often require matching source accessions such as SDY, PV, SUB, and ES.

To support faster search and linking, VaxSEA maintains normalized internal join keys derived from source identifiers. These normalized keys help connect:

  • studies to experiments,
  • experiments to subjects and samples,
  • subjects to interventions and occurrences,
  • samples to result records, and
  • results to documentation and assay metadata.
Note: VaxSEA preserves original source identifiers whenever possible. A local VaxSEA ID such as IMMP100 is not necessarily the same as the original source accession. The original source accession is usually displayed separately, such as SDY100.

Result Files and Download Availability

VaxSEA result records may contain a file reference, a repository URL, or an internal source-path reference. Not every result entry is a direct public download link.

Value Type Example How VaxSEA Displays It
Public web URL https://zenodo.org/records/7407195 Displayed as a clickable source link.
Repository accession GSE79396, GPL13158 Displayed as a link to the relevant source repository when possible.
Internal or source file reference ALLSTUDIES-DR56_Metadata/elisa_result.txt Displayed as a file reference only. It may not be directly downloadable from VaxSEA.
Empty or unavailable link N/A Displayed as no direct source link available.
Important: VaxSEA is primarily a metadata integration and search interface. Some raw or processed datasets may need to be accessed through the original source repository, such as ImmPort, GEO, or Zenodo. Some repositories may require authentication, data-use agreements, or other access steps.

Citing Data Sources

When using data discovered through VaxSEA, please cite VaxSEA/VIOLIN as appropriate and also cite the original source datasets, repositories, and publications. Source-specific citations may include ImmPort study accessions, GEO series accessions, PubMed publications, and VIGET-related publications.

If you notice a missing or incorrect source link, please contact the VaxSEA/VIOLIN team so the metadata can be reviewed.