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

population

The repository contains anonymized individual, patient level clinical data sets from NIAID sponsored clinical trials to harness the power of data to generate new knowledge to understand, treat, and prevent infectious diseases such as COVID-19.
It requires a Data Access Request submitted to NIAID in order to access and download a dataset from AccessClinicalData@NIAID.

non-collection specific

(Simple) Released

Portable Document Format (PDF), a fixed-layout document format.

United States

English

National Institute of Health (NIH) - National Institute of Allergy and Infectious Diseases (NIAID)

National Institute of Allergy and Infectious Diseases (NIAID) Clinical Trials Data Repository

An acute, acute and chronic, or chronic inflammation focally or diffusely affecting the lung parenchyma, caused by an infection in one or both of the lungs (by bacteria, viruses, fungi, or mycoplasma.). Symptoms include cough, shortness of breath, fevers, chills, chest pain, headache, sweating, and weakness.

pneumonia

Pneumonia

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

A chronic, recurrent infection caused by the bacterium Mycobacterium tuberculosis. Tuberculosis (TB) may affect almost any tissue or organ of the body with the lungs being the most common site of infection. The clinical stages of TB are primary or initial infection, latent or dormant infection, and recrudescent or adult-type TB. Ninety to 95% of primary TB infections may go unrecognized. Histopathologically, tissue lesions consist of granulomas which usually undergo central caseation necrosis. Local symptoms of TB vary according to the part affected; acute symptoms include hectic fever, sweats, and emaciation; serious complications include granulomatous erosion of pulmonary bronchi associated with hemoptysis. If untreated, progressive TB may be associated with a high degree of mortality. This infection is frequently observed in immunocompromised individuals with AIDS or a history of illicit IV drug use.

tuberculosis

Tuberculosis

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

fungal infectious disease

Fungi Infection

One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal.

Bacteria

A research study that prospectively assigns human participants or groups of humans to one or more health-related interventions to evaluate the effects on health outcomes.

Clinical Trial

viral Infectious disease

Viruses Infection

A species of gram-positive, aerobic bacteria that produces TUBERCULOSIS in humans, other primates, CATTLE; DOGS; and some other animals which have contact with humans. Growth tends to be in serpentine, cordlike masses in which the bacilli show a parallel orientation.

Mycobacterium tuberculosis

An acute infectious disorder that is caused by gram positive or gram negative bacteria; representative examples include pneumococcal, streptococcal, salmonella, and meningeal infections.

bacterial infectious disease

Bacterial Infection

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

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

A collection of information in various types of structured or non-structured formats.

repository

Topic

Digital Object Type

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

Landing page where users can browse and download dataset files in various formats.

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

Identifier	URL: https://accessclinicaldata.niaid.nih.gov/
Type	Repository
Topics/About	Clinical Trial Disease Infectious Disease Bacterial Infection Pneumonia Tuberculosis Fungi Infection Pneumonia Vaccine-Preventable Disease COVID-19 Tuberculosis Viruses Infection Viral Respiratory Tract Infection COVID-19 Pneumonia Host Homo sapiens Pathogen Bacteria Mycobacterium tuberculosis Viruses SARS-CoV2
Language	English
Accessible For Free	TRUE
Biological Scale	population
Geographical Scope	United States
File Format	PDF
Version	unspecified
HTTP Status Code	200
HTTP Checked On	2026/09/27