The share of the U.S. population with antibodies to the SARS-CoV-2 virus in their bloodstream increased from 34% in December 2021 to 58% in February 2022, including 75% of children, according to a study
released today by the Centers for Disease Control and Prevention. The study tested blood samples during the COVID-19 omicron period for antibodies produced in response to infection but not in response to COVID-19 vaccines. Children had the highest rates of infection-induced antibodies and adults 65 and older the lowest, with the greatest increases over the period in age groups with the lowest COVID-19 vaccination coverage.
“Vaccination remains the safest strategy for preventing complications from SARS-CoV-2 infection, including hospitalization among children and adults,” the authors said.