Number Of Undiagnosed COVID-19 Cases In US In First Six Months Of Pandemic May Have Been As High As 16.8M, Researchers Say

HealthDay (6/30) reports, “In the first six months of the COVID-19 pandemic in the United States, the overall weighted undiagnosed seropositivity estimate was 4.6 percent, according to a study published in the June 22 issue of Science Translational Medici...