last ingest21 Oct 2026 · 22:28 UTC

Track diseases as they spread.

OutbreakIndex aggregates reports from official health agencies, news media, and open signals into a single auditable map. Every number traces back to its source.

Open Ebola trackerHantavirusLassa fever
01Coverage

A live picture of our reach.

Every country we track is backed by a declared source — an official health agency, a newsroom, or an open signal. This is how far that reach extends today, and how fast it is growing.

17
Countries covered

8.7% of the world

≤24h
Data freshness

refreshed daily

10
Source feeds

and expanding

3
Pathogens tracked

in active surveillance

These are the live feeds behind the numbers — a deliberately small set today, growing as more sources come online. Coverage shown is declared, not a claim of complete surveillance.

02Pathogen Index

One platform, every pathogen.

Live case counts across every tracker — sourced from official health agencies, news media, and open signals. Every number traces back to its source.

Pathogen
Open
03Method

From source to map, in plain sight.

Every observation keeps a trail back to the source it came from. The pipeline is three steps, none of them hidden.

  1. 01 / Step

    Discover

    Scheduled crawlers sweep official health agencies, news media, and open signals. Discovery is broad and cheap — every candidate document is logged so nothing slips between runs.

    Sources
    WHO · CDC · ECDC · RKI · PAHO · ProMED · GDELT
  2. 02 / Step

    Index

    Reports from every source are reconciled into a single observation per event, deduplicated across outlets, and tagged by provenance tier — so trust is data, not code.

    Tiers
    official · media · signal
  3. 03 / Step

    Visualize

    Deduped events feed a suite of views — an interactive map, epidemic-curve charts, a live updates feed, and embeddable widgets — so the same dataset can answer different questions. Citations travel with every number.

    Views
    map · charts · feed · embed
04Notify

First to know when a new tracker ships.

When a new pathogen tracker goes live — or when something on the platform changes that matters — we'll send one short note.

We store only your email and an opaque opt-out token. No third-party analytics, no ad networks, no list rentals. See Privacy for the full posture.

See the data behind the next outbreak.

Trackers for Hantavirus, Ebola, and Lassa fever are live now. New pathogens join the index as their data path stabilizes.

Open Ebola trackerHantavirusLassa fever