<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>27</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Joanna Merckx</style></author><author><style face="normal" font="default" size="100%">Mathieu Roelants</style></author><author><style face="normal" font="default" size="100%">Milena Callies</style></author><author><style face="normal" font="default" size="100%">I Desombere</style></author><author><style face="normal" font="default" size="100%">Ines Kabouche</style></author><author><style face="normal" font="default" size="100%">Els Duysburgh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Prevalence and incidence of antibodies against SARS-CoV-2 in children and school staff measured between December 2020 and December 2021: Findings of the fifth testing period – brief summary</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Belgium</style></keyword><keyword><style  face="normal" font="default" size="100%">CHILDREN</style></keyword><keyword><style  face="normal" font="default" size="100%">COVID-19</style></keyword><keyword><style  face="normal" font="default" size="100%">SARS-CoV-2</style></keyword><keyword><style  face="normal" font="default" size="100%">Seroprevalence</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>