Datasets:

EPI-Eval
/

delphi-flusurv

pretty_name: CDC FluSurv-NET — weekly flu hospitalisation rates
license: other
size_categories:
  - 10K<n<100K
tags:
  - cadence-weekly
  - geo-us
  - surveillance-respiratory
  - pathogen-influenza
  - tier-2
  - availability-open
schema_version: '0.1'
source_id: delphi-flusurv
source_url: https://www.cdc.gov/resp-net/dashboard/index.html
manifest_section: §1.3
surveillance_category: respiratory
pathogens:
  - influenza
availability: open
availability_notes: null
access_type: delphi
tier: 2
cadence: weekly
geography_levels:
  - subnational-region
geography_countries:
  - US
gold_standard_for: []
vintaged_version_of: null
succeeds: null
derived_from: []
value_columns:
  - name: rate_overall
    unit: per 100k population
    value_type: rate
    description: Weekly flu-confirmed hospitalisation rate, all ages, this catchment
    aggregation: rate
  - name: rate_age_0
    unit: per 100k population
    value_type: rate
    description: Hospitalisation rate, age 0-4
    aggregation: rate
  - name: rate_age_1
    unit: per 100k population
    value_type: rate
    description: Hospitalisation rate, age 5-17
    aggregation: rate
  - name: rate_age_2
    unit: per 100k population
    value_type: rate
    description: Hospitalisation rate, age 18-49
    aggregation: rate
  - name: rate_age_3
    unit: per 100k population
    value_type: rate
    description: Hospitalisation rate, age 50-64
    aggregation: rate
  - name: rate_age_4
    unit: per 100k population
    value_type: rate
    description: Hospitalisation rate, age 65+
    aggregation: rate
notes:
  extra_columns:
    - column: location_name
      description: >-
        Source-native catchment code (e.g. `CA`, `NY_albany`, `network_all`).
        `location_id` prefixes with `US-FLUSURV-`.
  interpretation_caveats:
    - column: rate_overall
      caveat: >
        FluSurv-NET catchments are *not* whole-state populations. CA covers
        selected counties

        in the SF Bay Area; NY has separate Albany and Rochester catchments.
        Don't compare

        catchment rates to state-level flu rates from other sources without
        re-weighting.
  general: >
    14 RESP-NET catchments (some states host two — NY: Albany + Rochester) plus
    a `network_all`

    aggregate. Seasonal — typically populated October through May. Pre-2018 the
    network was

    smaller (FluSurv-NET predecessors operated different sites).
computed:
  last_ingested: '2026-04-26T12:48:46Z'
  row_count: 9342
  time_coverage:
    - start: '2003-10-04'
      end: '2004-05-01'
    - start: '2004-10-09'
      end: '2005-04-30'
    - start: '2005-10-08'
      end: '2006-04-29'
    - start: '2006-10-07'
      end: '2007-04-28'
    - start: '2007-10-06'
      end: '2008-04-26'
    - start: '2008-10-04'
      end: '2009-05-02'
    - start: '2009-09-05'
      end: '2010-05-01'
    - start: '2010-10-09'
      end: '2011-04-30'
    - start: '2011-10-08'
      end: '2012-04-28'
    - start: '2012-10-06'
      end: '2013-04-27'
    - start: '2013-10-05'
      end: '2014-04-26'
    - start: '2014-10-04'
      end: '2015-05-02'
    - start: '2015-10-10'
      end: '2016-04-30'
    - start: '2016-10-08'
      end: '2017-04-29'
    - start: '2017-10-07'
      end: '2018-04-28'
    - start: '2018-10-06'
      end: '2019-04-27'
    - start: '2019-10-05'
      end: '2020-04-25'
    - start: '2020-10-03'
      end: '2021-05-01'
    - start: '2021-10-09'
      end: '2022-06-11'
    - start: '2022-10-08'
      end: '2023-04-29'
    - start: '2023-10-07'
      end: '2025-04-26'
    - start: '2025-10-04'
      end: '2026-01-03'
  geography_unit_count: 14
  observed_cadence_days: 7
  missing_gaps: []
  data_hash: 5d74a1430d9cebda

CDC FluSurv-NET — weekly flu hospitalisation rates

14 RESP-NET catchments (some states host two — NY: Albany + Rochester) plus a network_all aggregate. Seasonal — typically populated October through May. Pre-2018 the network was smaller (FluSurv-NET predecessors operated different sites).

Source: https://www.cdc.gov/resp-net/dashboard/index.html

Coverage

Time: 2003-10-04 → 2004-05-01; 2004-10-09 → 2005-04-30; 2005-10-08 → 2006-04-29; 2006-10-07 → 2007-04-28; 2007-10-06 → 2008-04-26; 2008-10-04 → 2009-05-02; 2009-09-05 → 2010-05-01; 2010-10-09 → 2011-04-30; 2011-10-08 → 2012-04-28; 2012-10-06 → 2013-04-27; 2013-10-05 → 2014-04-26; 2014-10-04 → 2015-05-02; 2015-10-10 → 2016-04-30; 2016-10-08 → 2017-04-29; 2017-10-07 → 2018-04-28; 2018-10-06 → 2019-04-27; 2019-10-05 → 2020-04-25; 2020-10-03 → 2021-05-01; 2021-10-09 → 2022-06-11; 2022-10-08 → 2023-04-29; 2023-10-07 → 2025-04-26; 2025-10-04 → 2026-01-03
Cadence: weekly (observed median spacing: 7 days)
Geography levels: subnational-region — 14 unique location IDs
Countries: US
Pathogens: influenza
Surveillance category: respiratory
Rows: 9,342

Columns

Column	Unit	value_type	Aggregation	Description
`rate_overall`	per 100k population	`rate`	`rate`	Weekly flu-confirmed hospitalisation rate, all ages, this catchment
`rate_age_0`	per 100k population	`rate`	`rate`	Hospitalisation rate, age 0-4
`rate_age_1`	per 100k population	`rate`	`rate`	Hospitalisation rate, age 5-17
`rate_age_2`	per 100k population	`rate`	`rate`	Hospitalisation rate, age 18-49
`rate_age_3`	per 100k population	`rate`	`rate`	Hospitalisation rate, age 50-64
`rate_age_4`	per 100k population	`rate`	`rate`	Hospitalisation rate, age 65+

Additional data columns

location_name — Source-native catchment code (e.g. CA, NY_albany, network_all). location_id prefixes with US-FLUSURV-.

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.

rate_overall — FluSurv-NET catchments are not whole-state populations. CA covers selected counties in the SF Bay Area; NY has separate Albany and Rochester catchments. Don't compare catchment rates to state-level flu rates from other sources without re-weighting.

Access

Availability: open
Access type: delphi
License: other
Tier: 2

Schema version 0.1 · Last ingested 2026-04-26T12:48:46Z · source_id: delphi-flusurv · Manifest section §1.3