SARS-CoV-2 seroprevalence up from Dec. 2021 to Feb. 2022

From December 2021 to February 2022, the seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) increased, reaching about 75 percent among children and adolescents by February 2022, according to research published in the April 26 early-release issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.