CDC WONDER & FluView

Weekly US respiratory-disease surveillance — influenza, COVID-19 and RSV hospital admissions, deaths and seasonal-baseline deviation by jurisdiction and week, straight from CDC's open data feeds.

Public health data — not medical advice.

📊 Sample Output

disease	week	week_ending_date	state	admission_level	source_admissions
Influenza	2026-W37	2026-09-12	Wyoming	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)
Influenza	2026-W37	2026-09-12	West Virginia	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)
Influenza	2026-W37	2026-09-12	Wisconsin	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)
Influenza	2026-W37	2026-09-12	Washington	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)
Influenza	2026-W37	2026-09-12	Vermont	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)
Influenza	2026-W37	2026-09-12	Virginia	Very Low	CDC NHSN Hospital Respiratory Data (vdzy-6i9v)

Real rows from run G6VLIfIRAk6OQo8fd on build 0.0.6 (2026-09-24), unedited apart from masked emails/phones and shortened long text; fields the source does not publish are empty.

⚙️ Sample inputs

This is the Store example input — the same input Apify's automated check runs — so it is proven to return rows on the current build. Paste it into the input form, or send it through the API, CLI or a schedule:

{
  "disease": "influenza",
  "age_group": "all",
  "weeks_back": 52,
  "compare_seasonal_baseline": true,
  "max_records": 200
}

🔧 Input reference

Field	Type	Default	What it does
disease	string (influenza, covid-19, rsv, any)	"influenza"	Which respiratory disease to track. influenza = seasonal flu, covid-19 = SARS-CoV-2, rsv = respiratory syncytial virus, any = all three in one run. Death counts are availa…
state_filter	string	""	Comma-separated list of US state codes (e.g. CA,NY,TX) or full state names. Use USA for the national aggregate. Leave empty to pull every state + DC + PR + USA aggregate. Acce…
age_group	string (0-4, 5-17, 18-49, 50-64, 65+, all)	"all"	Age stratum. The NHSN weekly admissions feed publishes one aggregate per jurisdiction/week — this actor apportions to the requested age bucket using the CDC FluView surveillance a…
weeks_back	integer	52	Look-back window in MMWR weeks. NHSN HRD updates every Friday. 52 weeks = one season; 104 weeks = two seasons (recommended for seasonal-baseline comparisons); 260 weeks = full 5 y…
compare_seasonal_baseline	boolean	true	If true, the actor fetches the 5-year NHSN history and emits vs_5yr_seasonal_avg_pct per record — the percent deviation from the same MMWR-week's 5-year average. This is the hea…
max_records	integer	200	Hard cap on emitted records. A typical full-USA flu season run = ~52 weeks × 52 states × 1 disease ≈ 2,704 raw rows; the actor caps at 2000. Set to 5 for a smoke test, 200-2000 fo…

🧾 JSON sample record

One real record from run G6VLIfIRAk6OQo8fd (emails/phones masked, long text shortened):

{
  "disease": "Influenza",
  "week": "2026-W37",
  "year": 2026,
  "week_ending_date": "2026-09-12",
  "state": "Wyoming",
  "state_code": "WY",
  "age_group": "all",
  "case_count": null,
  "hospitalization_count": 0,
  "hospitalization_rate_per_100k": 0,
  "admission_level": "Very Low",
  "death_count": 0,
  "positivity_rate": 0,
  "source_admissions": "CDC NHSN Hospital Respiratory Data (vdzy-6i9v)",
  "source_deaths": "CDC NCHS Provisional COVID-19/Pneumonia/Influenza Death Counts (r8kw-7aab)",
  "source_baseline": "CDC NHSN weekly timeseries (mpgq-jmmr), mean of prior years' same MMWR week",
  "fluview_dashboard_url": "https://www.cdc.gov/flu/weekly/",
  "vs_5yr_seasonal_avg_pct": -100
}

💰 Pricing

Event	Price (USD)	When it is charged
Actor Start (apify-actor-start)	$0.005	Charged when the Actor starts running. Number of events charged depends on Actor memory (one event per GB, minimum one event).
Disease-week record (disease-week-record)	$0.05	Per disease-week-state record with seasonal-baseline comparison

Pay-per-event: you pay only for what the run delivers. A run that delivers nothing bills no result events (only the actor-start event, when the actor defines one). Example: a run that delivers 100 results costs 100 × $0.05 = $5.00 plus the start fee.

🔗 Related Actors

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• CMS Dialysis Facility Compare — Provider Data API
• CMS Home Health Agencies — Provider Records API

18 more in this family on the NexGenData Store page.

⏰ Run this as a monitoring subscription (recommended)

NHSN updates every Friday. Schedule a weekly sweep (0 8 * * 1) and catch each new reporting week as it posts.

📊 What you get

Clean JSON, one record per disease × week × jurisdiction:

• disease, week (ISO YYYY-Www), year, week_ending_date
• state, state_code — 50 states + DC + PR + the USA national aggregate
• age_group — all, or one of 0-4, 5-17, 18-49, 50-64, 65+
• hospitalization_count — confirmed new admissions. For an age group this is the CDC-published per-age admission column, not a modelled split; null where CDC published no value for that jurisdiction-week
• hospitalization_rate_per_100k, admission_level — as published by NHSN (all ages)
• death_count — NCHS provisional weekly deaths for that state and week (COVID-19 and influenza; null for RSV, and null when an age group is selected because CDC publishes no weekly age-split death feed)
• vs_5yr_seasonal_avg_pct — deviation from the mean admissions for the same MMWR week in prior years, computed from the NHSN weekly timeseries. null unless at least two prior-year observations exist
• positivity_rate — admissions-per-100k normalised against the jurisdiction's peak in the requested window (a 0–1 surveillance-pressure index, not a laboratory percent-positivity)
• case_count — null. CDC no longer publishes weekly confirmed case counts by state for these pathogens; this actor does not estimate one
• source_admissions, source_deaths, source_baseline, fluview_dashboard_url — provenance for every row

Sources: CDC NHSN Hospital Respiratory Data (vdzy-6i9v, current weeks), CDC NHSN weekly timeseries (mpgq-jmmr, history and age strata), NCHS Provisional Death Counts (r8kw-7aab).

Pricing: $0.05 per disease-week record (Pay-Per-Event) — about 20 records per $1. You are charged only for records actually delivered; a blocked source fails the run, and an empty result returns 0 rows and charges nothing.

⚠️ Coverage note

The current NHSN admissions feed retains roughly the last 20 reporting weeks, so weeks_back beyond that returns what CDC currently publishes. The seasonal baseline reaches back to 2020 via the NHSN timeseries.

🤖 Use with AI agents

Point Claude, the OpenAI Agents SDK, an n8n flow or any MCP-aware client at it and pull official records on demand.

Agentic payments (x402): Supports agentic payment via x402 — agents can call this actor with USDC, no API key required.

🔗 Related actors

FDA & public-health records family:

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Product-safety recalls: NHTSA Recalls · NHTSA Defects · NHTSA Safety · CPSC Recalls

Agent front door — Healthcare & FDA MCP: Healthcare & FDA MCP

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Public official records, assembled for research and monitoring.