OmniVira: a knowledgebase of source-linked evidence on viral spillover and cross-species transmission.

OmniVira, a curated knowledgebase for zoonotic spillover and cross-species transmission evidence, contains 8072 OVE records from 2623 source articles as of 4 August 2026.

• Why it matters: Evidence on spillover and cross-species transmission is dispersed across surveillance, epidemiological, experimental, mechanistic, and genomic studies, limiting systematic comparison and synthesis.
• What they did: OmniVira links literature-derived findings to normalized virus, host, and geographic entities using an auditable article-evidence framework, ontology-guided curation, LLM-assisted screening, and curator review.
• The result: The platform enables transparent, context-preserving retrieval and verification of linked virus-host-literature relationships, covering 60 ICTV virus families, 55 host orders, and 121 countries.