README.md

---
pretty_name: OpenDengue — national dengue case counts (V1.3)
license: cc-by-4.0
size_categories:
- 10K<n<100K
tags:
- cadence-irregular
- geo-global
- surveillance-arboviral
- pathogen-dengue
- tier-1
- availability-open
schema_version: '0.1'
source_id: opendengue
source_url: https://opendengue.org/
manifest_section: §6.1
surveillance_category: arboviral
pathogens:
- dengue
availability: open
availability_notes: Static archive — V1.3 release on figshare. Updates are sporadic figshare uploads; this dataset pins V1.3
  and must be re-ingested manually when a new release drops.
access_type: github
tier: 1
cadence: irregular
geography_levels:
- national
geography_countries:
- multiple
gold_standard_for: []
vintaged_version_of: null
succeeds: null
derived_from: []
value_columns:
- name: dengue_total
  unit: cases
  value_type: incident
  description: Reported dengue cases in the period. May include suspected, probable, and laboratory-confirmed cases — see
    `case_status` (schema-standard) and `case_definition` (source-original) for the certainty tier of each row. Includes all
    severity levels (dengue, dengue with/without warning signs, severe dengue, dengue haemorrhagic fever, dengue shock syndrome,
    dengue deaths) where reported.
  aggregation: sum
notes:
  extra_columns:
  - column: case_definition
    description: 'Source-original case definition: `Suspected`, `Probable`, `Confirmed`, `Probable and confirmed`, `Suspected
      and confirmed`, `Total`. Preserved alongside the schema-standard `case_status` so original fidelity isn''t lost. The
      same (country, date) cell can have multiple rows when the source distinguishes definitions — filter to one for a single
      time series.'
  - column: temporal_resolution
    description: Per-row temporal granularity (`Week` or `Month`). Coarser source aggregates (`Year`, `Total`) are filtered
      out at ingest — the dashboard can sum kept rows on the fly when an annual roll-up is needed.
  - column: location_name
    description: Source's English country name (uppercase). `location_id` (ISO 3166-1 alpha-2) is canonical.
  interpretation_caveats:
  - column: case_status
    caveat: 'Mapping from the source''s `case_definition`: `Probable and confirmed` → `probable` (looser tier of the union,
      the minimum certainty represented); `Suspected and confirmed` → `suspect`; `Total` → `not-classified`. The original
      definition is preserved in `case_definition` for full fidelity.'
  - column: dengue_total
    caveat: Cross-country comparability is limited — case definitions, reporting completeness, and surveillance intensity
      vary substantially. OpenDengue normalizes structure but does not normalize underlying definitions. For modeling, prefer
      one country at a time or one case_status consistently.
  - column: case_definition
    caveat: '`Probable and confirmed` and `Suspected and confirmed` are *summed* categories from sources that combine tiers
      — they are not standalone classifications. Don''t sum them with `Confirmed`/`Probable`/`Suspected` rows from the same
      country and date.'
  - column: temporal_resolution
    caveat: A country may switch between Week and Month over its history. Pick one resolution per country when constructing
      a continuous series; don't naively concatenate rows of different temporal_resolution.
  general: 'OpenDengue (Clarke et al. 2024, https://doi.org/10.1038/s41597-024-03120-7) is a

    standardized archive of dengue case reports from public national surveillance

    systems. This dataset is the V1.3 **national** extract; subnational extracts

    (`Spatial_extract`, `Temporal_extract`) are larger and could be ingested as

    sibling datasets later (`opendengue-admin1`, `opendengue-admin2`).


    Coverage spans 1993-present (with a small 1924-1925 fragment), but

    per-country availability varies widely — Brazil has weekly data 2014+,

    others only monthly. Annual and Total aggregates from the source are

    filtered out so the dataset is series-shaped; sum kept rows in the

    dashboard when an annual roll-up is needed. Use the `case_status` /

    `case_definition` and `temporal_resolution` row-level columns to

    construct a coherent series.

    '
extra:
  release_tag: V1.3
  figshare_doi: https://doi.org/10.6084/m9.figshare.24259573
  github_repo: https://github.com/OpenDengue/master-repo
  source_csv: data/releases/V1.3/National_extract_V1_3.zip
  paper_doi: https://doi.org/10.1038/s41597-024-03120-7
  case_definition_to_status_mapping:
    Confirmed: confirmed
    Probable: probable
    Suspected: suspect
    Probable and confirmed: probable
    Suspected and confirmed: suspect
    Total: not-classified
  case_definition_normalization: lowercase 'confirmed' rows in source were merged with 'Confirmed' to deduplicate filter values
  filtered_temporal_resolutions:
  - Year
  - Total
computed:
  last_ingested: '2026-04-26T02:53:03Z'
  row_count: 26378
  time_coverage:
  - start: '1924-01-26'
    end: '1925-01-17'
  - start: '1993-01-31'
    end: '2025-04-30'
  geography_unit_count: 127
  observed_cadence_days: 7
  missing_gaps:
  - start: '1924-01-26'
    end: '1924-03-01'
    weeks: 5
  - start: '1924-03-01'
    end: '1924-04-12'
    weeks: 6
  - start: '1924-04-12'
    end: '1924-07-19'
    weeks: 14
  - start: '1924-07-19'
    end: '1924-08-16'
    weeks: 4
  - start: '1924-09-06'
    end: '1924-09-27'
    weeks: 3
  - start: '1924-09-27'
    end: '1925-01-10'
    weeks: 15
  - start: '1993-01-31'
    end: '1993-02-28'
    weeks: 4
  - start: '1993-02-28'
    end: '1993-03-31'
    weeks: 4
  - start: '1993-03-31'
    end: '1993-04-30'
    weeks: 4
  - start: '1993-04-30'
    end: '1993-05-31'
    weeks: 4
  - start: '1993-05-31'
    end: '1993-06-30'
    weeks: 4
  - start: '1993-06-30'
    end: '1993-07-31'
    weeks: 4
  - start: '1993-07-31'
    end: '1993-08-31'
    weeks: 4
  - start: '1993-08-31'
    end: '1993-09-30'
    weeks: 4
  - start: '1993-09-30'
    end: '1993-10-31'
    weeks: 4
  - start: '1993-10-31'
    end: '1993-11-30'
    weeks: 4
  - start: '1993-11-30'
    end: '1993-12-31'
    weeks: 4
  - start: '1993-12-31'
    end: '1994-01-31'
    weeks: 4
  - start: '1994-01-31'
    end: '1994-02-28'
    weeks: 4
  - start: '1994-02-28'
    end: '1994-03-31'
    weeks: 4
  - start: '1994-03-31'
    end: '1994-04-30'
    weeks: 4
  - start: '1994-04-30'
    end: '1994-05-31'
    weeks: 4
  - start: '1994-05-31'
    end: '1994-06-30'
    weeks: 4
  - start: '1994-06-30'
    end: '1994-07-31'
    weeks: 4
  - start: '1994-07-31'
    end: '1994-08-31'
    weeks: 4
  - start: '1994-08-31'
    end: '1994-09-30'
    weeks: 4
  - start: '1994-09-30'
    end: '1994-10-31'
    weeks: 4
  - start: '1994-10-31'
    end: '1994-11-30'
    weeks: 4
  - start: '1994-11-30'
    end: '1994-12-31'
    weeks: 4
  - start: '1994-12-31'
    end: '1995-01-31'
    weeks: 4
  - start: '1995-01-31'
    end: '1995-02-28'
    weeks: 4
  - start: '1995-02-28'
    end: '1995-03-31'
    weeks: 4
  - start: '1995-03-31'
    end: '1995-04-30'
    weeks: 4
  - start: '1995-04-30'
    end: '1995-05-31'
    weeks: 4
  - start: '1995-05-31'
    end: '1995-06-30'
    weeks: 4
  - start: '1995-06-30'
    end: '1995-07-31'
    weeks: 4
  - start: '1995-07-31'
    end: '1995-08-31'
    weeks: 4
  - start: '1995-08-31'
    end: '1995-09-30'
    weeks: 4
  - start: '1995-09-30'
    end: '1995-10-31'
    weeks: 4
  - start: '1995-10-31'
    end: '1995-11-30'
    weeks: 4
  - start: '1995-11-30'
    end: '1995-12-31'
    weeks: 4
  - start: '1995-12-31'
    end: '1996-01-31'
    weeks: 4
  - start: '1996-01-31'
    end: '1996-02-29'
    weeks: 4
  - start: '1996-02-29'
    end: '1996-03-31'
    weeks: 4
  - start: '1996-03-31'
    end: '1996-04-30'
    weeks: 4
  - start: '1996-04-30'
    end: '1996-05-31'
    weeks: 4
  - start: '1996-05-31'
    end: '1996-06-30'
    weeks: 4
  - start: '1996-06-30'
    end: '1996-07-31'
    weeks: 4
  - start: '1996-07-31'
    end: '1996-08-31'
    weeks: 4
  - start: '1996-08-31'
    end: '1996-09-30'
    weeks: 4
  - start: '1996-09-30'
    end: '1996-10-31'
    weeks: 4
  - start: '1996-10-31'
    end: '1996-11-30'
    weeks: 4
  - start: '1996-11-30'
    end: '1996-12-31'
    weeks: 4
  - start: '1996-12-31'
    end: '1997-01-31'
    weeks: 4
  - start: '1997-01-31'
    end: '1997-02-28'
    weeks: 4
  - start: '1997-02-28'
    end: '1997-03-31'
    weeks: 4
  - start: '1997-03-31'
    end: '1997-04-30'
    weeks: 4
  - start: '1997-04-30'
    end: '1997-05-31'
    weeks: 4
  - start: '1997-05-31'
    end: '1997-06-30'
    weeks: 4
  - start: '1997-06-30'
    end: '1997-07-31'
    weeks: 4
  - start: '1997-07-31'
    end: '1997-08-31'
    weeks: 4
  - start: '1997-08-31'
    end: '1997-09-30'
    weeks: 4
  - start: '1997-09-30'
    end: '1997-10-31'
    weeks: 4
  - start: '1997-10-31'
    end: '1997-11-30'
    weeks: 4
  - start: '1997-11-30'
    end: '1997-12-31'
    weeks: 4
  - start: '1997-12-31'
    end: '1998-01-17'
    weeks: 2
  - start: '1998-01-31'
    end: '1998-02-21'
    weeks: 3
  - start: '1999-01-02'
    end: '1999-01-31'
    weeks: 4
  - start: '1999-01-31'
    end: '1999-02-28'
    weeks: 4
  - start: '1999-02-28'
    end: '1999-03-31'
    weeks: 4
  - start: '1999-03-31'
    end: '1999-04-30'
    weeks: 4
  - start: '1999-04-30'
    end: '1999-05-31'
    weeks: 4
  - start: '1999-05-31'
    end: '1999-06-30'
    weeks: 4
  - start: '1999-06-30'
    end: '1999-07-31'
    weeks: 4
  - start: '1999-07-31'
    end: '1999-08-31'
    weeks: 4
  - start: '1999-08-31'
    end: '1999-09-30'
    weeks: 4
  - start: '1999-09-30'
    end: '1999-10-31'
    weeks: 4
  - start: '1999-10-31'
    end: '1999-11-30'
    weeks: 4
  - start: '1999-11-30'
    end: '1999-12-31'
    weeks: 4
  - start: '2024-12-31'
    end: '2025-01-31'
    weeks: 4
  - start: '2025-01-31'
    end: '2025-02-28'
    weeks: 4
  - start: '2025-02-28'
    end: '2025-03-31'
    weeks: 4
  - start: '2025-03-31'
    end: '2025-04-30'
    weeks: 4
  data_hash: b5be5b622fec7445
---

# OpenDengue — national dengue case counts (V1.3)

OpenDengue (Clarke et al. 2024, https://doi.org/10.1038/s41597-024-03120-7) is a
standardized archive of dengue case reports from public national surveillance
systems. This dataset is the V1.3 **national** extract; subnational extracts
(`Spatial_extract`, `Temporal_extract`) are larger and could be ingested as
sibling datasets later (`opendengue-admin1`, `opendengue-admin2`).

Coverage spans 1993-present (with a small 1924-1925 fragment), but
per-country availability varies widely — Brazil has weekly data 2014+,
others only monthly. Annual and Total aggregates from the source are
filtered out so the dataset is series-shaped; sum kept rows in the
dashboard when an annual roll-up is needed. Use the `case_status` /
`case_definition` and `temporal_resolution` row-level columns to
construct a coherent series.

**Source:** <https://opendengue.org/>

## Coverage

- **Time:** 1924-01-26 → 1925-01-17; 1993-01-31 → 2025-04-30
- **Cadence:** `irregular` (observed median spacing: 7 days)
- **Geography levels:** `national` — 127 unique location IDs
- **Countries:** multiple
- **Pathogens:** `dengue`
- **Surveillance category:** `arboviral`
- **Rows:** 26,378

### Reporting gaps within coverage

- 1924-01-26 → 1924-03-01 (5 weeks)
- 1924-03-01 → 1924-04-12 (6 weeks)
- 1924-04-12 → 1924-07-19 (14 weeks)
- 1924-07-19 → 1924-08-16 (4 weeks)
- 1924-09-06 → 1924-09-27 (3 weeks)
- 1924-09-27 → 1925-01-10 (15 weeks)
- 1993-01-31 → 1993-02-28 (4 weeks)
- 1993-02-28 → 1993-03-31 (4 weeks)
- 1993-03-31 → 1993-04-30 (4 weeks)
- 1993-04-30 → 1993-05-31 (4 weeks)
- 1993-05-31 → 1993-06-30 (4 weeks)
- 1993-06-30 → 1993-07-31 (4 weeks)
- 1993-07-31 → 1993-08-31 (4 weeks)
- 1993-08-31 → 1993-09-30 (4 weeks)
- 1993-09-30 → 1993-10-31 (4 weeks)
- 1993-10-31 → 1993-11-30 (4 weeks)
- 1993-11-30 → 1993-12-31 (4 weeks)
- 1993-12-31 → 1994-01-31 (4 weeks)
- 1994-01-31 → 1994-02-28 (4 weeks)
- 1994-02-28 → 1994-03-31 (4 weeks)
- 1994-03-31 → 1994-04-30 (4 weeks)
- 1994-04-30 → 1994-05-31 (4 weeks)
- 1994-05-31 → 1994-06-30 (4 weeks)
- 1994-06-30 → 1994-07-31 (4 weeks)
- 1994-07-31 → 1994-08-31 (4 weeks)
- 1994-08-31 → 1994-09-30 (4 weeks)
- 1994-09-30 → 1994-10-31 (4 weeks)
- 1994-10-31 → 1994-11-30 (4 weeks)
- 1994-11-30 → 1994-12-31 (4 weeks)
- 1994-12-31 → 1995-01-31 (4 weeks)
- 1995-01-31 → 1995-02-28 (4 weeks)
- 1995-02-28 → 1995-03-31 (4 weeks)
- 1995-03-31 → 1995-04-30 (4 weeks)
- 1995-04-30 → 1995-05-31 (4 weeks)
- 1995-05-31 → 1995-06-30 (4 weeks)
- 1995-06-30 → 1995-07-31 (4 weeks)
- 1995-07-31 → 1995-08-31 (4 weeks)
- 1995-08-31 → 1995-09-30 (4 weeks)
- 1995-09-30 → 1995-10-31 (4 weeks)
- 1995-10-31 → 1995-11-30 (4 weeks)
- 1995-11-30 → 1995-12-31 (4 weeks)
- 1995-12-31 → 1996-01-31 (4 weeks)
- 1996-01-31 → 1996-02-29 (4 weeks)
- 1996-02-29 → 1996-03-31 (4 weeks)
- 1996-03-31 → 1996-04-30 (4 weeks)
- 1996-04-30 → 1996-05-31 (4 weeks)
- 1996-05-31 → 1996-06-30 (4 weeks)
- 1996-06-30 → 1996-07-31 (4 weeks)
- 1996-07-31 → 1996-08-31 (4 weeks)
- 1996-08-31 → 1996-09-30 (4 weeks)
- 1996-09-30 → 1996-10-31 (4 weeks)
- 1996-10-31 → 1996-11-30 (4 weeks)
- 1996-11-30 → 1996-12-31 (4 weeks)
- 1996-12-31 → 1997-01-31 (4 weeks)
- 1997-01-31 → 1997-02-28 (4 weeks)
- 1997-02-28 → 1997-03-31 (4 weeks)
- 1997-03-31 → 1997-04-30 (4 weeks)
- 1997-04-30 → 1997-05-31 (4 weeks)
- 1997-05-31 → 1997-06-30 (4 weeks)
- 1997-06-30 → 1997-07-31 (4 weeks)
- 1997-07-31 → 1997-08-31 (4 weeks)
- 1997-08-31 → 1997-09-30 (4 weeks)
- 1997-09-30 → 1997-10-31 (4 weeks)
- 1997-10-31 → 1997-11-30 (4 weeks)
- 1997-11-30 → 1997-12-31 (4 weeks)
- 1997-12-31 → 1998-01-17 (2 weeks)
- 1998-01-31 → 1998-02-21 (3 weeks)
- 1999-01-02 → 1999-01-31 (4 weeks)
- 1999-01-31 → 1999-02-28 (4 weeks)
- 1999-02-28 → 1999-03-31 (4 weeks)
- 1999-03-31 → 1999-04-30 (4 weeks)
- 1999-04-30 → 1999-05-31 (4 weeks)
- 1999-05-31 → 1999-06-30 (4 weeks)
- 1999-06-30 → 1999-07-31 (4 weeks)
- 1999-07-31 → 1999-08-31 (4 weeks)
- 1999-08-31 → 1999-09-30 (4 weeks)
- 1999-09-30 → 1999-10-31 (4 weeks)
- 1999-10-31 → 1999-11-30 (4 weeks)
- 1999-11-30 → 1999-12-31 (4 weeks)
- 2024-12-31 → 2025-01-31 (4 weeks)
- 2025-01-31 → 2025-02-28 (4 weeks)
- 2025-02-28 → 2025-03-31 (4 weeks)
- 2025-03-31 → 2025-04-30 (4 weeks)

## Columns

| Column | Unit | value_type | Aggregation | Description |
|--------|------|------------|-------------|-------------|
| `dengue_total` | cases | `incident` | `sum` | Reported dengue cases in the period. May include suspected, probable, and laboratory-confirmed cases — see `case_status` (schema-standard) and `case_definition` (source-original) for the certainty tier of each row. Includes all severity levels (dengue, dengue with/without warning signs, severe dengue, dengue haemorrhagic fever, dengue shock syndrome, dengue deaths) where reported. |

### Additional data columns

- **`case_definition`** — Source-original case definition: `Suspected`, `Probable`, `Confirmed`, `Probable and confirmed`, `Suspected and confirmed`, `Total`. Preserved alongside the schema-standard `case_status` so original fidelity isn't lost. The same (country, date) cell can have multiple rows when the source distinguishes definitions — filter to one for a single time series.
- **`temporal_resolution`** — Per-row temporal granularity (`Week` or `Month`). Coarser source aggregates (`Year`, `Total`) are filtered out at ingest — the dashboard can sum kept rows on the fly when an annual roll-up is needed.
- **`location_name`** — Source's English country name (uppercase). `location_id` (ISO 3166-1 alpha-2) is canonical.

## Interpretation caveats

Things that may differ from how other sources define a similar measure. If you're combining this dataset with another, read these first.

- **`case_status`** — Mapping from the source's `case_definition`: `Probable and confirmed` → `probable` (looser tier of the union, the minimum certainty represented); `Suspected and confirmed` → `suspect`; `Total` → `not-classified`. The original definition is preserved in `case_definition` for full fidelity.
- **`dengue_total`** — Cross-country comparability is limited — case definitions, reporting completeness, and surveillance intensity vary substantially. OpenDengue normalizes structure but does not normalize underlying definitions. For modeling, prefer one country at a time or one case_status consistently.
- **`case_definition`** — `Probable and confirmed` and `Suspected and confirmed` are *summed* categories from sources that combine tiers — they are not standalone classifications. Don't sum them with `Confirmed`/`Probable`/`Suspected` rows from the same country and date.
- **`temporal_resolution`** — A country may switch between Week and Month over its history. Pick one resolution per country when constructing a continuous series; don't naively concatenate rows of different temporal_resolution.

## Access

- **Availability:** `open`
- **Access type:** `github`
- **License:** cc-by-4.0
- **Tier:** 1

---

*Schema version `0.1` · Last ingested 2026-04-26T02:53:03Z · `source_id: opendengue` · Manifest section §6.1*