Category Archives: News

What COVID-19 Seroprevalence Surveys Can Tell Us

A seroprevalence survey uses antibody tests to estimate the percentage of people in a population who have antibodies against SARS-CoV-2. This page includes a graphic explaining how seroprevlance surveys use antibody test to measure the percent of a population likely have a past infections with SARS-CoV-2, the virus that causes COVID-19.read more »

About Serology Surveillance

Reported coronavirus disease, COVID-19, cases likely represent only a fraction of all SARS-CoV-2, the virus that causes COVID-19 infections. CDC is using information from COVID-19 seroprevalence surveys to learn more about past SARS-CoV-2 infections, often not accounted for in reported cases. Seroprevalence surveys are investigations that involve the use of serology test (also known as…read more »

Changing Paths During the Pandemic

When the pandemic hit, CDC’s National Health and Nutrition Examination Survey turned its fleet of mobile examination centers into rolling centers for much-needed COVID-19 testing.read more »