COVID-19 antibodies likely present in fewer than 10% of U.S. adults

An analysis of blood drawn from a random sample of 28,503 U.S. adults receiving dialysis in July 2020 found fewer than 10% had antibodies for COVID-19. Whether the finding would hold for all U.S. adults is uncertain. People receiving dialysis disproportionately come from minority groups with high rates of COVID-19; conversely, these individuals are typically less mobile and likely have fewer opportunities for exposure to the coronavirus than adults in general. Notably, the presence of antibodies was higher in samples drawn from people living in Black, Hispanic and poor communities, and lower in samples from counties that placed restrictions on resident mobility. (The Lancet article, 9/25/20)