| --- |
| pretty_name: ECDC ERVISS — ILI/ARI primary-care consultation rates |
| license: other |
| size_categories: |
| - 10K<n<100K |
| tags: |
| - cadence-weekly |
| - geo-eu |
| - surveillance-respiratory |
| - pathogen-influenza |
| - tier-1 |
| - availability-open |
| schema_version: '0.1' |
| source_id: ecdc-erviss |
| source_url: https://github.com/EU-ECDC/Respiratory_viruses_weekly_data |
| manifest_section: §5.3 |
| surveillance_category: respiratory |
| pathogens: |
| - influenza |
| - sars-cov-2 |
| - rsv |
| availability: open |
| availability_notes: null |
| access_type: github |
| tier: 1 |
| cadence: weekly |
| geography_levels: |
| - national |
| geography_countries: |
| - AT |
| - BE |
| - BG |
| - CY |
| - CZ |
| - DE |
| - DK |
| - EE |
| - ES |
| - FI |
| - FR |
| - GR |
| - HR |
| - HU |
| - IE |
| - IS |
| - IT |
| - LI |
| - LT |
| - LU |
| - LV |
| - MT |
| - NL |
| - 'NO' |
| - PL |
| - PT |
| - RO |
| - SE |
| - SI |
| - SK |
| gold_standard_for: [] |
| vintaged_version_of: null |
| succeeds: null |
| derived_from: [] |
| value_columns: |
| - name: ili_rate |
| unit: consultations per 100,000 population |
| value_type: rate |
| description: Influenza-like illness primary-care consultation rate per 100,000 population per ECDC ERVISS methodology. |
| aggregation: rate |
| - name: ari_rate |
| unit: consultations per 100,000 population |
| value_type: rate |
| description: Acute respiratory infection primary-care consultation rate per 100,000 population. Broader case definition |
| than ILI. |
| aggregation: rate |
| notes: |
| extra_columns: |
| - column: age |
| description: Reporting age band (`0-4`, `5-14`, `15-64`, `65+`, `total`). Filter to `total` for population-wide series. |
| - column: location_name |
| description: Source's English country name. `location_id` (ISO 3166-1 alpha-2) is canonical. |
| interpretation_caveats: |
| - column: ili_rate |
| caveat: ILI is a *symptomatic* signal — patients meeting the ECDC ILI case definition (sudden fever ≥38°C plus cough/sore |
| throat) regardless of lab confirmation. Captures non-flu respiratory illness too. Pair with ERVISS sentinel virological |
| positivity for lab-confirmed flu. |
| - column: ari_rate |
| caveat: ARI is broader than ILI — any acute respiratory infection without requiring fever. Counts will exceed `ili_rate` |
| and include more non-influenza causes. |
| - column: location_id |
| caveat: Greece is `GR` (ISO 3166-1 alpha-2). ECDC's internal `EL` code is not used in this dataset. |
| general: 'ECDC''s ERVISS aggregates respiratory virus surveillance from 30+ EU/EEA countries. |
| |
| This dataset is the **primary-care syndromic** slice (ILI and ARI consultation rates); |
| |
| additional ERVISS slices (sentinel virological positivity, SARI severity, variants) |
| |
| can be added as sibling datasets later. |
| |
| |
| Data is published weekly to the public GitHub repo at |
| |
| `EU-ECDC/Respiratory_viruses_weekly_data`. Each weekly commit is a snapshot — |
| |
| vintaged history is available via git but is not surfaced as `as_of` in this |
| |
| dataset. |
| |
| ' |
| extra: |
| github_repo: https://github.com/EU-ECDC/Respiratory_viruses_weekly_data |
| source_csv: data/ILIARIRates.csv |
| erviss_dashboard: https://erviss.org/ |
| computed: |
| last_ingested: '2026-04-26T01:58:56Z' |
| row_count: 26751 |
| time_coverage: |
| - start: '2021-06-27' |
| end: '2026-04-19' |
| geography_unit_count: 28 |
| observed_cadence_days: 7 |
| missing_gaps: [] |
| data_hash: 1df84f26f0055222 |
| --- |
| |
| # ECDC ERVISS — ILI/ARI primary-care consultation rates |
|
|
| ECDC's ERVISS aggregates respiratory virus surveillance from 30+ EU/EEA countries. |
| This dataset is the **primary-care syndromic** slice (ILI and ARI consultation rates); |
| additional ERVISS slices (sentinel virological positivity, SARI severity, variants) |
| can be added as sibling datasets later. |
|
|
| Data is published weekly to the public GitHub repo at |
| `EU-ECDC/Respiratory_viruses_weekly_data`. Each weekly commit is a snapshot — |
| vintaged history is available via git but is not surfaced as `as_of` in this |
| dataset. |
|
|
| **Source:** <https://github.com/EU-ECDC/Respiratory_viruses_weekly_data> |
|
|
| ## Coverage |
|
|
| - **Time:** 2021-06-27 → 2026-04-19 |
| - **Cadence:** `weekly` (observed median spacing: 7 days) |
| - **Geography levels:** `national` — 28 unique location IDs |
| - **Countries:** AT, BE, BG, CY, CZ, DE, DK, EE, ES, FI, FR, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MT, NL, NO, PL, PT, RO, SE, SI, SK |
| - **Pathogens:** `influenza`, `sars-cov-2`, `rsv` |
| - **Surveillance category:** `respiratory` |
| - **Rows:** 26,751 |
|
|
| ## Columns |
|
|
| | Column | Unit | value_type | Aggregation | Description | |
| |--------|------|------------|-------------|-------------| |
| | `ili_rate` | consultations per 100,000 population | `rate` | `rate` | Influenza-like illness primary-care consultation rate per 100,000 population per ECDC ERVISS methodology. | |
| | `ari_rate` | consultations per 100,000 population | `rate` | `rate` | Acute respiratory infection primary-care consultation rate per 100,000 population. Broader case definition than ILI. | |
|
|
| ### Additional data columns |
|
|
| - **`age`** — Reporting age band (`0-4`, `5-14`, `15-64`, `65+`, `total`). Filter to `total` for population-wide series. |
| - **`location_name`** — Source's English country name. `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. |
| |
| - **`ili_rate`** — ILI is a *symptomatic* signal — patients meeting the ECDC ILI case definition (sudden fever ≥38°C plus cough/sore throat) regardless of lab confirmation. Captures non-flu respiratory illness too. Pair with ERVISS sentinel virological positivity for lab-confirmed flu. |
| - **`ari_rate`** — ARI is broader than ILI — any acute respiratory infection without requiring fever. Counts will exceed `ili_rate` and include more non-influenza causes. |
| - **`location_id`** — Greece is `GR` (ISO 3166-1 alpha-2). ECDC's internal `EL` code is not used in this dataset. |
|
|
| ## Access |
|
|
| - **Availability:** `open` |
| - **Access type:** `github` |
| - **License:** other |
| - **Tier:** 1 |
|
|
| --- |
|
|
| *Schema version `0.1` · Last ingested 2026-04-26T01:58:56Z · `source_id: ecdc-erviss` · Manifest section §5.3* |
|
|
