Seroprevalence of SARS-CoV-2–Specific Antibodies Among Adults in Los Angeles County, California, on April 10-11, 2020

allow strategically staffing the care of SARS-CoV-2-positive or patients suspected to be positive with seroconverted nurses and physicians. This study has limitations including a small sample size, short follow-up, lack of large-scale sensitivity/specificity of ELISA, lag of antibody positivity from PCR positivity, and the setting of a single pediatric dialysis unit.