Prototype KG‑aware adaptation of the BioPortal interface. Graph pages generated from live KG‑Registry metadata; tool links go to the live BioPortal.
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COVID-19

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COVID-19 Ontology

KGXBioPortal ontologyvVersion Release: 1.0.0CC BY 4.0
Visibility: Public

A KGX transformation of the BioPortal ontology COVID-19 Ontology (COVID-19), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.

Graph at a glance

2,942
Nodes
7,150
Edges
Version Release: 1.0.0
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
COVID-19.tar.gz
3K nodes · 7K edges
Base graph is the full graph

This ontology declares no imports, so its base graph already is its full graph; nothing separate was built.

The graph contains COVID-19_nodes.tsv and COVID-19_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 15 categories across 2,942 nodes

NamedThing907
BiologicalProcessOrActivity494
OrganismTaxon319
ChemicalEntity262
PhysicalEntity234
PhenotypicFeature155
CellularComponent147
Activity103
InformationContentEntity73
Protein70
Procedure65
AnatomicalEntity55
Attribute28
Cell24
MaterialSample6

An item carrying more than one category is counted under each, so these counts can add up to more than the total.

How they were assigned 2,035 of 2,942 nodes (69.2%)

17is a seed term whose Biolink class is not in doubt
2,018inherits from a seed term above it in the hierarchy

Biolink categories 1 category across 7,150 edges

Association7,150

An item carrying more than one category is counted under each, so these counts can add up to more than the total.