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date
timestamp[us, tz=UTC]date
2023-10-07 00:00:00
2026-04-18 00:00:00
location_id
large_stringclasses
50 values
location_level
stringclasses
2 values
location_name
large_stringclasses
50 values
condition
large_stringclasses
3 values
condition_type
stringclasses
1 value
condition_native
large_stringclasses
3 values
percent_visits
float64
0
17.5
2023-10-07T00:00:00
01
subnational-state
Alabama
influenza
pathogen
Influenza
0.5
2023-10-07T00:00:00
01
subnational-state
Alabama
rsv
pathogen
RSV
0.5
2023-10-07T00:00:00
01
subnational-state
Alabama
sars-cov-2
pathogen
COVID-19
1.2
2023-10-07T00:00:00
02
subnational-state
Alaska
influenza
pathogen
Influenza
2.5
2023-10-07T00:00:00
02
subnational-state
Alaska
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
02
subnational-state
Alaska
sars-cov-2
pathogen
COVID-19
1.5
2023-10-07T00:00:00
04
subnational-state
Arizona
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
04
subnational-state
Arizona
rsv
pathogen
RSV
0
2023-10-07T00:00:00
04
subnational-state
Arizona
sars-cov-2
pathogen
COVID-19
2.3
2023-10-07T00:00:00
05
subnational-state
Arkansas
influenza
pathogen
Influenza
0.4
2023-10-07T00:00:00
05
subnational-state
Arkansas
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
05
subnational-state
Arkansas
sars-cov-2
pathogen
COVID-19
1.2
2023-10-07T00:00:00
06
subnational-state
California
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
06
subnational-state
California
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
06
subnational-state
California
sars-cov-2
pathogen
COVID-19
1.3
2023-10-07T00:00:00
08
subnational-state
Colorado
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
08
subnational-state
Colorado
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
08
subnational-state
Colorado
sars-cov-2
pathogen
COVID-19
2
2023-10-07T00:00:00
09
subnational-state
Connecticut
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
09
subnational-state
Connecticut
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
09
subnational-state
Connecticut
sars-cov-2
pathogen
COVID-19
2
2023-10-07T00:00:00
10
subnational-state
Delaware
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
10
subnational-state
Delaware
rsv
pathogen
RSV
0.4
2023-10-07T00:00:00
10
subnational-state
Delaware
sars-cov-2
pathogen
COVID-19
1.5
2023-10-07T00:00:00
11
subnational-state
District of Columbia
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
11
subnational-state
District of Columbia
rsv
pathogen
RSV
0.7
2023-10-07T00:00:00
11
subnational-state
District of Columbia
sars-cov-2
pathogen
COVID-19
1.2
2023-10-07T00:00:00
12
subnational-state
Florida
influenza
pathogen
Influenza
1.6
2023-10-07T00:00:00
12
subnational-state
Florida
rsv
pathogen
RSV
0.6
2023-10-07T00:00:00
12
subnational-state
Florida
sars-cov-2
pathogen
COVID-19
1.2
2023-10-07T00:00:00
13
subnational-state
Georgia
influenza
pathogen
Influenza
0.4
2023-10-07T00:00:00
13
subnational-state
Georgia
rsv
pathogen
RSV
0.5
2023-10-07T00:00:00
13
subnational-state
Georgia
sars-cov-2
pathogen
COVID-19
0.7
2023-10-07T00:00:00
15
subnational-state
Hawaii
influenza
pathogen
Influenza
2.6
2023-10-07T00:00:00
15
subnational-state
Hawaii
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
15
subnational-state
Hawaii
sars-cov-2
pathogen
COVID-19
2.3
2023-10-07T00:00:00
16
subnational-state
Idaho
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
16
subnational-state
Idaho
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
16
subnational-state
Idaho
sars-cov-2
pathogen
COVID-19
2.4
2023-10-07T00:00:00
17
subnational-state
Illinois
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
17
subnational-state
Illinois
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
17
subnational-state
Illinois
sars-cov-2
pathogen
COVID-19
1.3
2023-10-07T00:00:00
18
subnational-state
Indiana
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
18
subnational-state
Indiana
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
18
subnational-state
Indiana
sars-cov-2
pathogen
COVID-19
1.1
2023-10-07T00:00:00
19
subnational-state
Iowa
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
19
subnational-state
Iowa
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
19
subnational-state
Iowa
sars-cov-2
pathogen
COVID-19
1.9
2023-10-07T00:00:00
20
subnational-state
Kansas
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
20
subnational-state
Kansas
rsv
pathogen
RSV
0
2023-10-07T00:00:00
20
subnational-state
Kansas
sars-cov-2
pathogen
COVID-19
1.1
2023-10-07T00:00:00
21
subnational-state
Kentucky
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
21
subnational-state
Kentucky
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
21
subnational-state
Kentucky
sars-cov-2
pathogen
COVID-19
1.7
2023-10-07T00:00:00
22
subnational-state
Louisiana
influenza
pathogen
Influenza
0.5
2023-10-07T00:00:00
22
subnational-state
Louisiana
rsv
pathogen
RSV
0.4
2023-10-07T00:00:00
22
subnational-state
Louisiana
sars-cov-2
pathogen
COVID-19
1.1
2023-10-07T00:00:00
23
subnational-state
Maine
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
23
subnational-state
Maine
rsv
pathogen
RSV
0
2023-10-07T00:00:00
23
subnational-state
Maine
sars-cov-2
pathogen
COVID-19
2
2023-10-07T00:00:00
24
subnational-state
Maryland
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
24
subnational-state
Maryland
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
24
subnational-state
Maryland
sars-cov-2
pathogen
COVID-19
1.6
2023-10-07T00:00:00
25
subnational-state
Massachusetts
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
25
subnational-state
Massachusetts
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
25
subnational-state
Massachusetts
sars-cov-2
pathogen
COVID-19
2.1
2023-10-07T00:00:00
26
subnational-state
Michigan
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
26
subnational-state
Michigan
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
26
subnational-state
Michigan
sars-cov-2
pathogen
COVID-19
1.5
2023-10-07T00:00:00
27
subnational-state
Minnesota
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
27
subnational-state
Minnesota
rsv
pathogen
RSV
0
2023-10-07T00:00:00
27
subnational-state
Minnesota
sars-cov-2
pathogen
COVID-19
1.6
2023-10-07T00:00:00
28
subnational-state
Mississippi
influenza
pathogen
Influenza
0.7
2023-10-07T00:00:00
28
subnational-state
Mississippi
rsv
pathogen
RSV
0.7
2023-10-07T00:00:00
28
subnational-state
Mississippi
sars-cov-2
pathogen
COVID-19
1.3
2023-10-07T00:00:00
30
subnational-state
Montana
influenza
pathogen
Influenza
0
2023-10-07T00:00:00
30
subnational-state
Montana
rsv
pathogen
RSV
0
2023-10-07T00:00:00
30
subnational-state
Montana
sars-cov-2
pathogen
COVID-19
3
2023-10-07T00:00:00
31
subnational-state
Nebraska
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
31
subnational-state
Nebraska
rsv
pathogen
RSV
0
2023-10-07T00:00:00
31
subnational-state
Nebraska
sars-cov-2
pathogen
COVID-19
0.7
2023-10-07T00:00:00
32
subnational-state
Nevada
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
32
subnational-state
Nevada
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
32
subnational-state
Nevada
sars-cov-2
pathogen
COVID-19
1.6
2023-10-07T00:00:00
33
subnational-state
New Hampshire
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
33
subnational-state
New Hampshire
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
33
subnational-state
New Hampshire
sars-cov-2
pathogen
COVID-19
2
2023-10-07T00:00:00
34
subnational-state
New Jersey
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
34
subnational-state
New Jersey
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
34
subnational-state
New Jersey
sars-cov-2
pathogen
COVID-19
1.5
2023-10-07T00:00:00
35
subnational-state
New Mexico
influenza
pathogen
Influenza
0.2
2023-10-07T00:00:00
35
subnational-state
New Mexico
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
35
subnational-state
New Mexico
sars-cov-2
pathogen
COVID-19
2.8
2023-10-07T00:00:00
36
subnational-state
New York
influenza
pathogen
Influenza
0.1
2023-10-07T00:00:00
36
subnational-state
New York
rsv
pathogen
RSV
0.1
2023-10-07T00:00:00
36
subnational-state
New York
sars-cov-2
pathogen
COVID-19
1.6
2023-10-07T00:00:00
37
subnational-state
North Carolina
influenza
pathogen
Influenza
0.6
2023-10-07T00:00:00
37
subnational-state
North Carolina
rsv
pathogen
RSV
0.2
2023-10-07T00:00:00
37
subnational-state
North Carolina
sars-cov-2
pathogen
COVID-19
2.1
2023-10-07T00:00:00
38
subnational-state
North Dakota
influenza
pathogen
Influenza
0.1
End of preview. Expand in Data Studio

CDC NSSP / ESSENCE — ED visits for ILI / COVID / RSV (aggregate)

NSSP (National Syndromic Surveillance Program) covers a large fraction of US ED visits via the BioSense platform / ESSENCE. This Socrata feed is a state-aggregated weekly summary of three respiratory pathogens; finer-grained NSSP data (sub-state HSA, broader case definitions) is gated and not exposed here.

South Dakota does not participate in NSSP and is absent from this feed. State participation has expanded over time, so historical sparsity differs by state.

Source: https://data.cdc.gov/Public-Health-Surveillance/2023-Respiratory-Virus-Response-NSSP-Emergency-Dep/vutn-jzwm

Coverage

  • Time: 2023-10-07 → 2026-04-18
  • Cadence: weekly (observed median spacing: 7 days)
  • Geography levels: national, subnational-state — 50 unique location IDs
  • Countries: US
  • Pathogens: influenza, sars-cov-2, rsv
  • Surveillance category: syndromic
  • Rows: 19,950

Columns

Column Unit value_type Aggregation Description
percent_visits percent (0-100) proportion proportion Percentage of ED visits with chief complaint or diagnosis matching the syndromic case definition for the row's condition.

Additional data columns

  • location_name — Source's full state name (or "United States"). Kept for traceability; location_id is canonical.
  • condition_native — Source's pathogen label as published (Influenza, COVID-19, RSV). Mapped to canonical condition slug for cross-source filtering.

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.

  • percent_visits — Syndromic — based on chief complaint or diagnosis codes at ED triage, not lab confirmation. Sensitive to coding practices, which vary by hospital and state. Not directly comparable to NHSN HRD's totalconfflunewadm (lab-confirmed admissions) or ILINet's wili (sentinel outpatient ILI).
  • conditionsars-cov-2 here means 'ED visits with COVID-19 syndromic match', not 'PCR-confirmed COVID admissions'. Same for influenza and rsv.

Access

  • Availability: open
  • Access type: socrata
  • License: other
  • Tier: 1

Schema version 0.1 · Last ingested 2026-04-25T23:03:27Z · source_id: cdc-nssp · Manifest section §1.8

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