Accuracy of Case-Based Seroprevalence of SARS-CoV-2 Antibodies in Maricopa County, Arizona

Megan Jehn, Urvashi Pandit, Susanna Sabin, Camila Tompkins, Jessica White, Erin Kaleta, Ariella P. Dale, Heather M. Ross, J. Mac McCullough, Susan Pepin, Katherine Kenny, Heidi Sanborn, Natalie Heywood, Amy H. Schnall, Timothy Lant, Rebecca Sunenshine

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We conducted a community seroprevalence survey in Arizona, from September 12 to October 1, 2020, to determine the presence of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We used the seroprevalence estimate to predict SARS-CoV-2 infections in the jurisdiction by applying the adjusted seroprevalence to the county’s population. The estimated community seroprevalence of SARS-CoV-2 infections was 4.3 times greater (95% confidence interval52.2, 7.5) than the number of reported cases. Field surveys with representative sampling provide data that may help fill in gaps in traditional public health reporting.

Original languageEnglish (US)
Pages (from-to)38-42
Number of pages5
JournalAmerican journal of public health
Issue number1
StatePublished - Jan 2022

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


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