Andrew Noymer, an associate professor of public health at the University of California, Irvine, recently told Insider that the US may be underestimating the prevalence of asymptomatic infections. Indeed, a recent model suggests that just 13% to 18% of COVID-19 cases are symptomatic. Given that asymptomatic people are less likely to seek a test, this could indicate that official case counts are missing a lot of infections.
US coronavirus cases have dropped 70% in the last six weeks. Experts chalk it up to more immunity and better behavior.
Yahoo News, Feb. 26, 2021
February 26, 2021