As in adults, symptoms that are triggered by infection with SARS-CoV-2 and persist for more than four weeks are referred to as "Ongoing COVID-19" and symptoms lasting longer than at least three months are referred to as "Post-COVID-19 Syndrome". Both are grouped under the term "Long COVID," encompassing a variety of different entities and, by definition, are distinguished from symptoms of acute disease within the first four weeks ("acute COVID-19"). Currently, data on the frequency of occurrence of "Long COVID" in children is sparse. In addition, most data on SARS-CoV-2 infection in children are from hospitalized patients. Thus, the aim of this ongoing study is to survey the clinical expression, hospitalization frequency, and psychosocial consequences of SARS-CoV2 infection in children. We present the preliminary results for the 0-14 years old study participants:based on the data as of May 02, 2021.

CH. ZURL1^,2, E. KANITZ3, D. SCHMID3, F. KÜFFEL3, S. MANDL3, L. ALSALIH3, E. EBER1, R. KERBL4, F. GÖTZINGER5, W. ZENZ1, V. STRENGER1 ^{1UNIVERSITY HOSPITAL}FOR PEDIATRICS AND ADOLESCENT MEDICINE, MEDICAL UNIVERSITY OF GRAZ ^{2UNIVERSITY HOSPITAL}FOR INTERNAL MEDICINE, MEDICAL UNIVERSITY OF GRAZ ^3AGENCYFOR HEALTH AND FOOD SAFETY (AGES), INSTITUTE OF INFECTION EPIDEMIOLOGY & SURVEILLANCE ^{4LANDESKRANKENHAUS}HOCHSTEIERMARK ^{5DEPARTMENT OF}PEDIATRICS AND ADOLESCENT MEDICINE, OTTAKRING CLINIC, VIENNA HEALTH ASSOCIATION