Answers are grounded in this paper and cite their sources.
This cross-sectional study estimates the seroprevalence of antibodies specific to the receptor binding domain of the spike protein of SARS-CoV-2 and vaccination coverage among adults in Los Angeles County, California, in April 2021.
No takes yet. Share an insight, caveat, or question.
Sood et al. (2022) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: