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• NSSP Emergency Department Respiratory DailyCenters for Disease Control and PreventionNSSP Emergency Department Respiratory Daily. This dataset provides the percentage of emergency department patient visits for the specified pathogen of all ED patient visits for the specified geographic part of the country that were observed for the given day f
  CSVJSONXMLUpdated 10/25/2026
• NSSP Emergency Department Respiratory DailyCenters for Disease Control and PreventionNSSP Emergency Department Respiratory Daily. This dataset provides the percentage of emergency department patient visits for the specified pathogen of all ED patient visits for the specified geographic part of the country that were observed for the given day f
  CSVJSONXMLUpdated 10/25/2026
• ASPR Treatments LocatorASPR Treatments Locator Outpatient COVID-19 and influenza (flu) medications may be available at additional locations not listed on this dataset. The locations displayed have either self-attested they have inventory of COVID-19 or influenza antiviral medication
  CSVJSONGeoJSONXMLUpdated 10/25/2026Daily
• Learning Resources DatabaseNational Library of MedicineThe Learning Resources Database is a catalog of interactive tutorials, videos, online classes, finding aids, and other instructional resources on National Library of Medicine (NLM) products and services. Resources may be available for immediate use via a brows
  CSVJSONXMLUpdated 10/24/2026
• Percent positivity of respiratory viruses by nucleic acid amplification tests (NAATs), as reported on the National Respiratory and Enteric Virus Surveillance System (NREVSS) DashboardCenters for Disease Control and PreventionMore than 450 public health and clinical laboratories located throughout the United States participate in laboratory-based surveillance through CDC's National Respiratory and Enteric Virus Surveillance System (NREVSS) for respiratory adenovirus, common human c
  CSVJSONXMLUpdated 10/23/2026Weekly
• Percent positivity of respiratory viruses by nucleic acid amplification tests (NAATs), as reported on the National Respiratory and Enteric Virus Surveillance System (NREVSS) DashboardCenters for Disease Control and PreventionMore than 450 public health and clinical laboratories located throughout the United States participate in laboratory-based surveillance through CDC's National Respiratory and Enteric Virus Surveillance System (NREVSS) for respiratory adenovirus, common human c
  CSVJSONXMLUpdated 10/23/2026Weekly
• TGS_SC2_nasal_positivityCenters for Disease Control and Prevention
  CSVJSONXMLUpdated 10/23/2026
• TGS_SC2_nasal_positivityCenters for Disease Control and Prevention
  CSVJSONXMLUpdated 10/23/2026
• TGS_SC2_nasal_lineagesCenters for Disease Control and Prevention
  CSVJSONXMLUpdated 10/23/2026
• TGS_SC2_nasal_lineagesCenters for Disease Control and Prevention
  CSVJSONXMLUpdated 10/23/2026
• CDC Epidemic Trends and RtCenters for Disease Control and PreventionAn archive of estimated trend categories, probabilities of epidemic growth, and Rt, updated weekly for COVID-19, flu (seasonally), and RSV (seasonally). This dataset only includes state-level estimates. For sub-state estimates see: https://data.cdc.gov/Center-
  CSVJSONXMLUpdated 10/23/2026Weekly
• CDC Epidemic Trends and RtCenters for Disease Control and PreventionAn archive of estimated trend categories, probabilities of epidemic growth, and Rt, updated weekly for COVID-19, flu (seasonally), and RSV (seasonally). This dataset only includes state-level estimates. For sub-state estimates see: https://data.cdc.gov/Center-
  CSVJSONXMLUpdated 10/23/2026Weekly
• 2023 Respiratory Virus Response - NSSP Emergency Department Visits - COVID-19, Flu, RSV, CombinedNational Syndromic Surveillance Program2023 Respiratory Virus Response - NSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined For additional information, please see: Companion Guide: NSSP Emergency Department Data on Respiratory Illness
  CSVJSONXMLUpdated 10/23/2026Weekly
• 2023 Respiratory Virus Response - NSSP Emergency Department Visits - COVID-19, Flu, RSV, CombinedNational Syndromic Surveillance Program2023 Respiratory Virus Response - NSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined For additional information, please see: Companion Guide: NSSP Emergency Department Data on Respiratory Illness
  CSVJSONXMLUpdated 10/23/2026Weekly
• Provisional Percent of Deaths for COVID-19, Influenza, and RSV by Select CharacteristicsCenters for Disease Control and PreventionThis file contains the provisional percent of total deaths by week for COVID-19, Influenza, and Respiratory Syncytial Virus for deaths occurring among residents in the United States, by sex, age group, and race and Hispanic origin. Provisional data are based o
  CSVJSONXMLUpdated 10/23/2026Weekly
• Provisional Percent of Deaths for COVID-19, Influenza, and RSV by Select CharacteristicsCenters for Disease Control and PreventionThis file contains the provisional percent of total deaths by week for COVID-19, Influenza, and Respiratory Syncytial Virus for deaths occurring among residents in the United States, by sex, age group, and race and Hispanic origin. Provisional data are based o
  CSVJSONXMLUpdated 10/23/2026Weekly
• Respiratory Conditions Treated in the Emergency DepartmentCenters for Disease Control and PreventionMethods for Creating Respiratory Conditions: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) discharge diagnostic codes listed in the Acute Respiratory Index (ARI) were used as a starting point to define respirat
  CSVJSONXMLUpdated 10/23/2026
• Respiratory Conditions Treated in the Emergency DepartmentCenters for Disease Control and PreventionMethods for Creating Respiratory Conditions: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) discharge diagnostic codes listed in the Acute Respiratory Index (ARI) were used as a starting point to define respirat
  CSVJSONXMLUpdated 10/23/2026
• Provisional Percent of Deaths for COVID-19, Influenza, and RSVCenters for Disease Control and PreventionThis file contains the provisional percent of total deaths by week for COVID-19, Influenza, and Respiratory Syncytial Virus for deaths occurring among residents in the United States. Provisional data are based on non-final counts of deaths based on the flow of
  CSVJSONXMLUpdated 10/23/2026Weekly
• Provisional Percent of Deaths for COVID-19, Influenza, and RSVCenters for Disease Control and PreventionThis file contains the provisional percent of total deaths by week for COVID-19, Influenza, and Respiratory Syncytial Virus for deaths occurring among residents in the United States. Provisional data are based on non-final counts of deaths based on the flow of
  CSVJSONXMLUpdated 10/23/2026Weekly
• Level of Acute Respiratory Illness (ARI) Activity by StateCenters for Disease Control and PreventionRespiratory illness activity is monitored using the acute respiratory illness (ARI) metric. ARI captures a broad range of diagnoses from emergency department visits for respiratory illnesses, from the common cold to severe infections like influenza, RSV and CO
  CSVJSONXMLUpdated 10/23/2026Weekly
• Level of Acute Respiratory Illness (ARI) Activity by StateCenters for Disease Control and PreventionRespiratory illness activity is monitored using the acute respiratory illness (ARI) metric. ARI captures a broad range of diagnoses from emergency department visits for respiratory illnesses, from the common cold to severe infections like influenza, RSV and CO
  CSVJSONXMLUpdated 10/23/2026Weekly
• NSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined - by Demographic CategoryCenters for Disease Control and PreventionNSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined - by Demographic Category For additional information, please see: Companion Guide: NSSP Emergency Department Data on Respiratory Illness . Updated once per week on Fridays.
  CSVJSONXMLUpdated 10/23/2026Weekly
• NSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined - by Demographic CategoryCenters for Disease Control and PreventionNSSP Emergency Department Visits - COVID-19, Flu, RSV, Combined - by Demographic Category For additional information, please see: Companion Guide: NSSP Emergency Department Data on Respiratory Illness . Updated once per week on Fridays.
  CSVJSONXMLUpdated 10/23/2026Weekly
• Percent of Tests Positive for Viral Respiratory PathogensCenters for Disease Control and PreventionPercent of tests positive for a pathogen is one of the surveillance metrics used to monitor respiratory pathogen transmission over time. The percent of tests positive is calculated by dividing the number of positive tests by the total number of tests administe
  CSVJSONXMLUpdated 10/23/2026Weekly