Kinder- und Jugendmedizin, Table of Contents Kinder- und Jugendmedizin 2021; 21(04): 227-229DOI: 10.1055/a-1348-6039 Editorial Kinder- und Jugendmedizin Wieland kiess∗ Recommend Article Abstract Buy Article Full Text References Literatur 1 Kiess W, Siekmeyer W. Gesundheitsreformen in Deutschland. Kinder- und Jugendmedizin 2007; 2: 69-72 2 Kiess W. Corona – Ist das Alles? Kinder- und Jugendmedizin. 2020; 20: 134-135 3 Woolhandler S, Himmelstein DU. The high costs of for-profit care. CMAJ 2004; 170: 1814-1815 4 Poulain T, Meigen C, Sobek C. et al Loss of childcare and classroom teaching during the Covid-19 related lockdown in spring 2020: a longitudinal study on consequences on leisure behaviour and schoolwork at home. Plos One 2021; 16 (03) e0247949 4 Vogel M. BMC Research Notes (im Druck). 6 Vogel M, Meigen C, Sobek C. et al Well-being and COVID-19 related worries of German children and adolescents: a longitudinal study from pre-COVID to the end of lockdown in spring 2020. JCPP Advances 2021; 1 (01) e12004 7 Jurkutat A, Meigen C, Maier M. et al Investigating non-symptomatic children, adolescents and school staff for seroprevalence and current SARS-CoV-2 infections under low and high incidences and varying mandatory measures – a longitudinal study accompanying school openings in Saxony, Germany (eingereicht).