The Infectious Disease Ontology is available for download in both OBO-Edit and Protege-OWL formats.

OBO-Edit format: new version coming soon

Protege-OWL format

OBO-Edit

Protege

The core Infectious Disease Ontology is an ontology of entities generally relevant to both the biomedical and clinical aspects of infectious diseases, such as ‘pathogen’, ‘host’, ‘vector’, and ‘vaccine’.  The structure of IDO adheres to the Basic Formal Ontology.  Terms in IDO that are within the scope of other OBO Foundry ontologies, such as the Gene Ontology, are derived from those ontologies.  Other terms are defined as much as possible as cross-products of terms from Foundry ontologies.

Information on the IDO extension ontologies can be found here.