What we index
Our evidence index draws from multiple data sources spanning veterinary medicine, wildlife biology, zoonotic disease, epidemiology, antimicrobial resistance, and public health. Here's what's included, what's coming, and how we keep it current.
Papers
Metadata and abstracts indexed from across the One Health literature
Journals
Spanning veterinary, zoonotic, wildlife, and public health disciplines
Updates
New papers ingested and processed on a weekly cycle
Data sources
We index metadata and abstracts from the following source types, in order of comprehensiveness:
Cross-publisher metadata feeds
These provide the broadest coverage: DOI, title, authors, abstract (where available), reference lists, and licensing information across millions of papers regardless of publisher.
- Crossref — DOI metadata, reference linking, and licensing for 150M+ records
- PubMed / MEDLINE — Biomedical and life sciences literature via NCBI
- Semantic Scholar — Academic graph with citation context and TLDR summaries
- OpenAlex — Open scholarly metadata catalog covering works, authors, venues
Open-access repositories
For papers with open-access licensing, we ingest full abstracts and, where permitted, full-text content for deeper extraction.
- PubMed Central (PMC) — Full-text open-access biomedical literature
- Europe PMC — European open-access biomedical literature archive
- bioRxiv / medRxiv — Preprint servers for biology and health sciences
- DOAJ — Directory of Open Access Journals for quality-assured OA content
Domain-specific databases
These sources provide targeted coverage for specific disciplines within the One Health scope.
- CAB Abstracts — Agriculture, veterinary science, and applied life sciences (metadata)
- AGRIS — FAO international agricultural science and technology database
- Global Health — Public health literature with emphasis on developing countries
- Wildlife & Ecology Studies Worldwide — Wildlife management and ecology
Discipline coverage
Our scope is defined by the One Health framework: research at the intersection of human, animal, and environmental health. In practice, this means we prioritize the following disciplines:
| Discipline | Coverage focus | Example journals |
|---|---|---|
| Veterinary medicine | Clinical treatment, diagnostics, surgery, internal medicine across species | JVIM, Veterinary Record, JAVMA, Vet Journal |
| Zoonotic disease | Pathogens transmitted between animals and humans | Zoonoses and Public Health, Vector-Borne and Zoonotic Diseases |
| Wildlife health | Disease ecology, surveillance, conservation medicine | Journal of Wildlife Diseases, EcoHealth, Wildlife Biology |
| Epidemiology | Disease distribution, risk factors, outbreak investigation | Preventive Veterinary Medicine, Epidemiology & Infection |
| Antimicrobial resistance | AMR surveillance, stewardship, cross-species resistance transfer | JAC-AMR, Antimicrobial Agents and Chemotherapy |
| Public health | One Health policy, surveillance systems, outbreak response | One Health, Science in One Health, Lancet Planetary Health |
Species coverage
Our entity normalization currently covers 47 species and species groups, with the deepest coverage in companion animals (canine, feline, equine), livestock (bovine, porcine, ovine, caprine, poultry), and key wildlife species involved in zoonotic disease transmission.
Species coverage continues to expand as we ingest new literature. If you work with a species that seems underrepresented in our index, please let us know.
What we don't index
Transparency about gaps is as important as coverage claims:
Paywalled full text. We work with abstracts and metadata for the vast majority of papers. Full-text extraction is limited to open-access articles with permissive licensing. We never circumvent paywalls.
Non-English literature. Our extraction pipeline currently processes English-language abstracts. Research published only in other languages is not yet covered. We recognize this creates a geographic and cultural bias in our evidence index and are exploring multilingual extraction for a future release.
Grey literature. Conference abstracts, theses, government reports, and other grey literature are not systematically indexed in v1, though some may appear through our metadata feeds.
Pure human medicine. Research that pertains exclusively to human health without a veterinary, wildlife, or zoonotic component is outside our scope. We index human health research only where it intersects with the One Health framework.
Update frequency
New papers are ingested on a weekly cycle. The extraction pipeline processes new arrivals within 48 hours of ingestion. Entity dictionaries and normalization mappings are updated monthly. Grading rubric changes are versioned and documented on the methodology page.
Suggest a source
If you know of a journal, repository, or database that should be included in our index, we'd like to hear about it. Write to coverage@onehealth.science with the source name, URL, and a brief note on why it's relevant to One Health research.