| --- |
| pretty_name: FluSight Forecast Hub — flu hospital admission target |
| license: cc0-1.0 |
| size_categories: |
| - 1K<n<10K |
| tags: |
| - cadence-weekly |
| - geo-us |
| - surveillance-respiratory |
| - pathogen-influenza |
| - tier-1 |
| - availability-open |
| schema_version: '0.1' |
| source_id: flusight-forecast-hub |
| source_url: https://github.com/cdcepi/FluSight-forecast-hub |
| manifest_section: §4.1 |
| surveillance_category: respiratory |
| pathogens: |
| - influenza |
| availability: open |
| availability_notes: null |
| access_type: github |
| tier: 1 |
| cadence: weekly |
| geography_levels: |
| - national |
| - subnational-state |
| geography_countries: |
| - US |
| gold_standard_for: [] |
| vintaged_version_of: null |
| succeeds: null |
| derived_from: |
| - nhsn-hrd |
| value_columns: |
| - name: value |
| unit: admissions/week |
| value_type: incident |
| description: Confirmed flu hospital admissions for the epiweek (FluSight scoring target) |
| aggregation: sum |
| - name: weekly_rate |
| unit: admissions/week per 100k |
| value_type: rate |
| description: Weekly admission rate per 100k population |
| aggregation: rate |
| notes: |
| extra_columns: |
| - column: location_name |
| description: State name as published by the hub. `location_id` is FIPS for states / `US` for national. |
| interpretation_caveats: |
| - column: value |
| caveat: 'This is the *target truth* file the hub uses for scoring. It is derived from NHSN HRD |
| |
| (`derived_from`) and may lag NHSN by one cycle while the hub freezes the truth value. |
| |
| For the live admissions series use `nhsn-hrd.totalconfflunewadm` directly. |
| |
| ' |
| general: 'This source represents only the **truth** half of the hub. Model forecasts live in |
| |
| `model-output/` in the same repo and will become a separate `flusight-forecast-hub-models` |
| |
| dataset (forecasts are a different shape — one row per (team, model, reference_date, |
| |
| target, horizon, location, output_type, value) — and need a separate schema treatment). |
| |
| ' |
| extra: |
| hub_format_note: Hubverse — see https://hubverse.io/ |
| forecast_models_separate: true |
| computed: |
| last_ingested: '2026-04-26T12:48:54Z' |
| row_count: 11660 |
| time_coverage: |
| - start: '2022-02-05' |
| end: '2026-04-18' |
| geography_unit_count: 53 |
| observed_cadence_days: 7 |
| missing_gaps: [] |
| data_hash: 1364dce3a6023406 |
| --- |
| |
| # FluSight Forecast Hub — flu hospital admission target |
|
|
| This source represents only the **truth** half of the hub. Model forecasts live in |
| `model-output/` in the same repo and will become a separate `flusight-forecast-hub-models` |
| dataset (forecasts are a different shape — one row per (team, model, reference_date, |
| target, horizon, location, output_type, value) — and need a separate schema treatment). |
|
|
| **Source:** <https://github.com/cdcepi/FluSight-forecast-hub> |
|
|
| ## Coverage |
|
|
| - **Time:** 2022-02-05 → 2026-04-18 |
| - **Cadence:** `weekly` (observed median spacing: 7 days) |
| - **Geography levels:** `national`, `subnational-state` — 53 unique location IDs |
| - **Countries:** US |
| - **Pathogens:** `influenza` |
| - **Surveillance category:** `respiratory` |
| - **Rows:** 11,660 |
|
|
| ## Columns |
|
|
| | Column | Unit | value_type | Aggregation | Description | |
| |--------|------|------------|-------------|-------------| |
| | `value` | admissions/week | `incident` | `sum` | Confirmed flu hospital admissions for the epiweek (FluSight scoring target) | |
| | `weekly_rate` | admissions/week per 100k | `rate` | `rate` | Weekly admission rate per 100k population | |
|
|
| ### Additional data columns |
|
|
| - **`location_name`** — State name as published by the hub. `location_id` is FIPS for states / `US` for national. |
| |
| ## 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. |
| |
| - **`value`** — This is the *target truth* file the hub uses for scoring. It is derived from NHSN HRD |
| (`derived_from`) and may lag NHSN by one cycle while the hub freezes the truth value. |
| For the live admissions series use `nhsn-hrd.totalconfflunewadm` directly. |
|
|
|
|
| ## Related datasets in EPI-Eval |
|
|
| - **Derived from:** `nhsn-hrd` |
|
|
| ## Access |
|
|
| - **Availability:** `open` |
| - **Access type:** `github` |
| - **License:** cc0-1.0 |
| - **Tier:** 1 |
|
|
| --- |
|
|
| *Schema version `0.1` · Last ingested 2026-04-26T12:48:54Z · `source_id: flusight-forecast-hub` · Manifest section §4.1* |
|
|
