Methodology
Sources and methodology
How Hanta-Map separates official reporting status, source status, snapshots and authority reports.
Data status: 14.06.2026, 15:57
Canonical sources instead of mixed totals
Hanta-Map separates case-count sources, context sources and authority reports. For the Germany total, the RKI reporting status is used. Other sources are not added automatically.
- Germany: RKI as canonical case-count source
- Source monitor: technical status of importers
- Snapshots: stored data states for development
- Authority feed: current official reports without automatic addition
Current import status
Current diagnostic: 13 of 15 importers successful. At least one source reports a retrieval error.
- CDC NNDSS United States Hantavirus: CDC Stacks search did not return a matching NNDSS Hantavirus record for Hantavirus pulmonary syndrome Weekly cases United States 2026
- Sciensano Belgium Hantavirus: https://sciensano.be/en/biblio/surveillance-epidemiologique-de-lhantavirose-2023 returned 500 Service unavailable (with message)
Snapshot logic
Snapshots store reported cases, deaths, source IDs and retrieval time per data status. Development is calculated by comparing the current and previous data status.
- Comparison by eventId
- A missing previous snapshot counts as 0
- Changes can be positive, 0 or negative
- Negative changes are handled neutrally as corrections
Frequently asked questions
Why does Hanta-Map not use every authority source as a case-count source?
Several authorities may describe the same reporting status or the same outbreak. Hanta-Map therefore uses canonical sources for totals and keeps further sources as context or references.
What does an error in the source monitor mean?
An error only means that a retrieval or import was not successful. It does not automatically mean that no cases were reported.