COVID-19 Serology Surveillance

Updated July 21, 2020

CDC is working with state, local, territorial, academic, and commercial partners to better understand COVID-19 in the United States. Serology tests look for antibodies in blood. If antibodies are found, that means there has been a previous infection. Antibodies are proteins that can fight off infections.

Interactive Dashboard

View our interactive dashboard highlighting detailed data for each of the 10 sites surveyed in the latest commercial laboratory seroprevalence study.

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About CDC Serology Surveillance

About Serology Surveillance
Serology Surveillance Strategy
CDC Seroprevalence Survey Types

Serology Surveillance Surveys

Large-scale Geographic Seroprevalence Surveys
Commercial Lab Data
Community-level Seroprevalence Surveys
Seroprevalence Surveys in Special Populations

Guidance on Serology (or Antibody) Testing

About Using Antibody Tests
Antibody Testing At-A-Glance
Antibody Testing Interim Guidelines
Information on CDC Serology Testing Lab Work
FAQs for Laboratorians on Serology

More Information

Testing for COVID-19
Test for Past Infection
Assessing Risk Factors
FAQ Data & Surveillance
FAQs on Testing

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Last Updated July 21, 2020

Content source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases