Surveillance and Data Analytics

Surveillance and Data Analytics

The Latest in COVID-19 Data and Surveillance

Updated Feb. 12, 2021

Key concepts

  • Report COVID-19 cases. CDC has developed a form that provides a standardized approach to reporting COVID-19 cases (individuals with at least one respiratory specimen that tested positive for the virus that causes COVID-19). These data are needed to track the impact of the outbreak and inform public health response.
  • Monitoring COVID-19 cases. COVID-19 surveillance draws from a combination of data sources from existing influenza and viral respiratory disease surveillance, syndromic surveillance, case reporting, commercial lab reporting, ongoing research platforms, and other new systems designed to answer specific questions. These systems combined create an updated, accurate picture of SARS-COV-2 spread and its effects in the United States and provide data used to inform the U.S. national public health response to COVID-19.

Resources from CDC

For surveillance of COVID-19 and its cause, SARS-CoV-2, in the United States, CDC is using multiple surveillance systems run in collaboration with state, local and territorial health departments, public health, commercial and clinical laboratories, vital statistics offices, health care providers, emergency departments and academic partners to monitor COVID-19 disease in the United States.

  • COVID Data Tracker Weekly Review
    This CDC report provides a weekly summary and interpretation of key indicators that have been adapted to track the COVID-19 pandemic in the United States.
  • Cases in U.S.
    This page is updated daily. Numbers close out at 4 p.m. the day before reporting.
  • Hospitalization Rates
    CDC monitors lab-confirmed COVID-19 hospitalizations, risk factors, and outcomes of those hospitalized each week.
  • Mortality Reporting
    CDC provides provisional death counts for COVID-19 and pneumonia based on death certificates with updates Monday-Friday.
  • Information for Reporting Cases
    To prevent further spread of SARS-CoV-2 and to collect information to better understand the virus and its impact on health outcomes, CDC has developed a form that provides a standardized approach to reporting COVID-19 cases (individuals with at least one respiratory specimen that tested positive for the virus that causes COVID-19).
  • COVID-NET Interactive
    Interactive and downloadable data used to estimate age-specific hospitalization rates on a weekly basis and describe characteristics of persons hospitalized with COVID-19.
  • CDC COVID-19 Information Management Resources (VADS)
    CDC develops and maintains the COVID-19 data interoperability standards and regulations repository that is based on communication and collaboration with standard development and standard implementation organizations.
  • eCR Now: COVID-19 Electronic Case Reporting
    Electronic Case Reporting (eCR) is the automated generation and transmission of case reports from the electronic health record (EHR) to public health agencies for review and action.
  • Calculating Percent Positivity
    For the federal COVID-19 response reporting purposes, laboratory test percent positivity represents the percentage of all RT-PCR tests conducted that are positive.

National COVID-19 reporting: CDC works with state and territorial public health partners to coordinate COVID-19 case reporting nationally.

Resources from other organizations

Content describing non-CDC tools on this site is provided for informational purposes only and is not intended to indicate endorsement, actual or implied, of the tools. Additionally, information on this site is provided “as is,” for users to evaluate and make their own determination as to their effectiveness.

Private sector, non-governmental organizations and academia

Various other organizations are also supporting this critical effort by providing: