Alliance for Pandemic Preparedness

February 5, 2021

Estimated seroprevalence of SARS-CoV-2 antibodies among adults in Orange County, California

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Results from a SARS-CoV-2 antibody seroprevalence survey (July 10 to August 16, 2020, n=2979) from a socioeconomically and demographically diverse population of adults in Orange County, California found a seroprevalence of approximately 12 percent. Antibody testing was conducted using a highly specific and sensitive CoVAM microarray. This SARS-CoV-2 point seroprevalence among adults for July to August 2020 is seven-fold greater than the cumulative incidence of diagnosed cases reported to Orange County.

Bruckner et al. (Feb 4, 2021). Estimated seroprevalence of SARS-CoV-2 antibodies among adults in Orange County, California. Scientific Reports. https://doi.org/10.1038/s41598-021-82662-x