Rare diseases · Sign or symptom

Unusual virus reactivation

HP:0034318

What it means

Reactivation is the mechanism whereby a latent virus that has infected a host cell switches to a lytic stage, undergoing productive viral replication and allowing the virus to spread. This term refers to reactivation regarded as unusual because of frequency, intensity, location, or nature of the virus, in the sense that the reactivation would not be observed in an immunocompetent host.

Part of the broader category

Unusual virus reactivation

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.