%0 Report %D 2021 %T Prevalence and incidence of antibodies against SARS-CoV-2 in children and school staff measured between December 2020 and June 2021: Findings of the third testing period – brief summary %A Joanna Merckx %A Mathieu Roelants %A Milena Callies %A I Desombere %A Ines Kabouche %A Els Duysburgh %K CHILDREN %K COVID-19 %K SARS-CoV-2 %K sero-prevalence %8 2021 %G eng