By using paired molecular and antibody testing for severe acute respiratory syndrome coronavirus 2 infection, we determined point prevalence and seroprevalence in Louisiana, USA, during the second phase of reopening. Infections were highly variable by race and ethnicity, work environment, and ZIP code. Census-weighted seroprevalence was 3.6%, and point prevalence was 3.0%.
Keywords: Baton Rouge; COVID-19; Louisiana; SARS virus; SARS-CoV-2; United States; convalescence; coronavirus disease; cross-sectional studies; healthcare disparities; prevalence; respiratory infections; seroepidemiologic studies; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.