Items corresponding to entire populations or subpopulations. Might be geographically or temporally temporally limited.

population

The webpage provides data accessible in CSV format and in a combined view of emergency department visit data for COVID-19, Influenza and RSV as tracked by the National Syndromic Surveillance Program (NSSP). Weekly emergency department visits are available by count and percents by respiratory illness or combined, by age group or by state. The data is weekly updated and represents the last year.

non-collection specific

(Simple) Released

Comma-separated values: a delimited text file format for tabular data.

State

Country

United States

English

Centers for Disease Control and Prevention (CDC)

National Center for Immunization and Respiratory Diseases (NCIRD)

CDC Archive - National Emergency Department Visits for COVID-19, Influenza, and Respiratory Syncytial Virus

A species of BETACORONAVIRUS causing atypical respiratory disease (COVID-19) in humans. The organism was first identified in 2019 in Wuhan, China. The natural host is the Chinese intermediate horseshoe bat, RHINOLOPHUS affinis.

Severe acute respiratory syndrome coronavirus 2

SARS-CoV2

An organism of a particular biological taxon that is the site of reproduction of an organism of a different taxon.

host organism

Host

Homo sapiens

The type species of PNEUMOVIRUS and an important cause of lower respiratory disease in infants and young children. It frequently presents with bronchitis and bronchopneumonia and is further characterized by fever, cough, dyspnea, wheezing, and pallor.

human respiratory syncytial virus

Infection by an etiologic agent that can be passed between animals and humans.

Zoonotic Infection

Zoonotic infection

A disease is a disposition (i) to undergo pathological processes that (ii) exists in an organism because of one or more disorders in that organism.

disease

Disease

A disease whose physical basis is an infectious disorder

infectious disease

Infectious Disease

A Coronavirus infection that is characterized by fever, cough and shortness of breath and that has_material_basis_in SARS-CoV-2.

COVID-19

An acute viral infection of the respiratory tract, occurring in isolated cases, in epidemics, or in pandemics; it is caused by serologically different strains of viruses (influenzaviruses) designated A, B, and C, has a 3-day incubation period, and usually lasts for 3 to 10 days. It is marked by inflammation of the nasal mucosa, pharynx, and conjunctiva; headache; myalgia; often fever, chills, and prostration; and occasionally involvement of the myocardium or central nervous system.

influenza

Influenza

viral Infectious disease

Viruses Infection

 A count of simulated or physical individuals in a population.

Population count

Population Count

a dataset that is about two or more emergency department visits involving two or more patients.

emergency department visit dataset

Emergency Department Visit

A count of emergency department visits in a population that is the number of emergency department visits that occurred during a proper part of a reference temporal interval.

incident emergency department visit count

Incident Emergency Department Visit

age-stratified

Age-Stratified

Vaccine preventable diseases are those infectious diseases that can be prevented by vaccination

vaccine-preventable Disease

Vaccine-Preventable Disease

A respiratory tract infection caused by a virus. Viruses represent the most common causes of upper and lower respiratory tract infections and include rhinoviruses, influenza viruses, parainfluenza viruses, and respiratory syncytial virus.

viral respiratory tract infection

Viral Respiratory Tract Infection

A census that is the specific outcome of a population demographic survey.

population demographic census

Population Demographic

Infection with the respiratory syncytial virus, an RNA virus of the genus Pneumovirus, in the family Paramyxoviridae, which is characterized by the formation of syncytia in tissue culture. It causes minor respiratory infection with rhinitis and cough in adults, but is capable of causing severe bronchitis and bronchopneumonia in young children.

respiratory syncytial virus infectious disease

Respiratory Syncytial Virus Infection

Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They are characterized by a lack of independent metabolism and the inability to replicate outside living host cells.

Viruses

An organism of a particular biological taxon that is the bearer of an infectious dispositions towards an organism of a different particular biological taxon.

pathogen

Pathogen

Unidentified influenza virus is a species of ssRNA(-) virus in the family Orthomyxoviridae.

unidentified influenza virus

Influenza virus

A data item that is an aggregate of other data items of the same type that have something in common. Averages and distributions can be determined for data sets.

data set

Digital Object Type

Topic

Geographic Resolution

Apache 2.0

Schema.org vocabulary for structured data on the web

Schema.org

A structured data markup specification for describing datasets in the life sciences, extending schema.org Dataset

Bioschemas Dataset Profile

Dublin Core Metadata Initiative Terms - refined elements for precise resource description

DCMI Metadata Terms

W3C Data Catalog Vocabulary for describing data catalogs

Data Catalog Vocabulary

DataCite metadata schema for research data citation

DataCite Metadata Schema

W3C Provenance Ontology for describing provenance information

PROV Ontology

Provenance, Authoring and Versioning ontology for metadata about web resources

PAV Ontology

Custom MIDAS vocabulary for epidemiological data and modeling

MIDAS Metadata Vocabulary

OBO Foundry ontologies for life sciences and biomedical research

Open Biological and Biomedical Ontology

GeoNames Ontology

Health Level 7 Fast Healthcare Interoperability Resources

HL7 FHIR

Systematized Nomenclature of Medicine Clinical Terms

SNOMED Clinical Terms

LOINC database for laboratory and clinical observations

Logical Observation Identifiers Names and Codes

JSON Schema (Draft 2020-12) defining the structure of MIDAS Catalog JSON-LD metadata records

MIDAS Catalog JSON-LD Schema

Searchable collection of curated datasets and software resources for infectious disease modeling, filterable by disease, topic, location, and time period.

Identifier	URL: https://archive.cdc.gov/#/details?url=https://www.cdc.gov/ncird/surveillance/respiratory-illnesses/index.html
Type	Data Set
Topics/About	Disease Infectious Disease Vaccine-Preventable Disease COVID-19 Influenza Viruses Infection Viral Respiratory Tract Infection COVID-19 Influenza Respiratory Syncytial Virus Infection Zoonotic infection Influenza Host Homo sapiens Pathogen Viruses human respiratory syncytial virus Influenza virus SARS-CoV2 Population Count Emergency Department Visit Incident Emergency Department Visit Population Demographic Age-Stratified
Language	English
Rights	https://www.cdc.gov/other/agencymaterials.html
Accessible For Free	TRUE
Biological Scale	population
Geographical Scope	United States
Geographical Resolution	State, Country
File Format	CSV
Version	unspecified
HTTP Status Code	200
HTTP Checked On	2026/09/27