Our Sources & Data Methodology
Primary Data Sources
| Source | What it provides | Update frequency |
|---|---|---|
| WHO (World Health Organization) | Global outbreak alerts | Daily |
| CDC (Centers for Disease Control) | US case data and guidelines | Daily |
| ECDC | European surveillance updates | Weekly |
| ProMED-mail | Early outbreak detection | Daily |
| PubMed / MEDLINE | Peer-reviewed research | Per publication |
| National health ministries | Country-specific reports | Varies |
How We Collect Data
- Manual monitoring of official feeds and publications.
- Automated alerts from WHO Disease Outbreak News.
- Daily ProMED digest review.
- Cross-referencing multiple sources before publication.
Data Verification Steps
- Confirm against at least two independent official sources.
- Compare claims with peer-reviewed evidence where available.
- Label uncertain reports as Unconfirmed.
- Update or remove content if contradicted by official data.
Map Data and Limitations
Geographic map layers use publicly available world map boundaries combined with country-level outbreak reports. Report publication lag and underreporting can cause temporary mismatches between map markers and true case counts.
External Links Policy
We prioritize links to official domains such as .gov, who.int, cdc.gov, and peer-reviewed journals.