Characterization of post-COVID syndrome by self-perceived symptom severity stratified by infection wave: beyond COVID, a prospective, multicenter cohort study in Germany.

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Title: Characterization of post-COVID syndrome by self-perceived symptom severity stratified by infection wave: beyond COVID, a prospective, multicenter cohort study in Germany.
Authors: Mertens A; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany., Smith J; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany., Bergs I; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany., Fischer J; Department of Internal Medicine B, Hepatology, Endocrinology and Clinical Infectiology, University Hospital Münster, Münster, Germany., Jansen S; Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany., Breitschwerdt S; Department of Medicine I, Bonn University Hospital, Bonn, Germany., Pracht E; Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany., Killer A; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany. alexander.killer@med.uni-duesseldorf.de., Schipper L; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Kuklik N; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.; Centre for Clinical Trials Essen, University Hospital Essen, Essen, Germany., Frank M; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Schwichtenberg J; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Bührmann S; Medical Faculty and University Hospital, Institute of Medical Sociology, Centre for Health and Society, Heinrich Heine University Düsseldorf, Düsseldorf, Germany., Zeissler L; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany., Dreher M; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany., Rockstroh J; Department of Medicine I, Bonn University Hospital, Bonn, Germany., Rohn H; Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany., Lehmann C; Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany., Tepasse PR; Department of Internal Medicine B, Hepatology, Endocrinology and Clinical Infectiology, University Hospital Münster, Münster, Germany., Schmidt B; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Dragano N; Medical Faculty and University Hospital, Institute of Medical Sociology, Centre for Health and Society, Heinrich Heine University Düsseldorf, Düsseldorf, Germany., Bode J; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany., Luedde T; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany., Jensen BE; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
Corporate Authors: Beyond COVID Study Group
Source: Infection [Infection] 2026 May 18. Date of Electronic Publication: 2026 May 18.
Publication Type: Journal Article
Journal Info: Publisher: Springer Heidelberg Country of Publication: Germany NLM ID: 0365307 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1439-0973 (Electronic) Linking ISSN: 03008126 NLM ISO Abbreviation: Infection Subsets: MEDLINE
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  Data: <searchLink fieldCode="AU" term="%22Mertens+A%22">Mertens A</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Smith+J%22">Smith J</searchLink>; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany.<br /><searchLink fieldCode="AU" term="%22Bergs+I%22">Bergs I</searchLink>; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany.<br /><searchLink fieldCode="AU" term="%22Fischer+J%22">Fischer J</searchLink>; Department of Internal Medicine B, Hepatology, Endocrinology and Clinical Infectiology, University Hospital Münster, Münster, Germany.<br /><searchLink fieldCode="AU" term="%22Jansen+S%22">Jansen S</searchLink>; Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Breitschwerdt+S%22">Breitschwerdt S</searchLink>; Department of Medicine I, Bonn University Hospital, Bonn, Germany.<br /><searchLink fieldCode="AU" term="%22Pracht+E%22">Pracht E</searchLink>; Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.<br /><searchLink fieldCode="AU" term="%22Killer+A%22">Killer A</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany. alexander.killer@med.uni-duesseldorf.de.<br /><searchLink fieldCode="AU" term="%22Schipper+L%22">Schipper L</searchLink>; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Kuklik+N%22">Kuklik N</searchLink>; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.; Centre for Clinical Trials Essen, University Hospital Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Frank+M%22">Frank M</searchLink>; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Schwichtenberg+J%22">Schwichtenberg J</searchLink>; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Bührmann+S%22">Bührmann S</searchLink>; Medical Faculty and University Hospital, Institute of Medical Sociology, Centre for Health and Society, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Zeissler+L%22">Zeissler L</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Dreher+M%22">Dreher M</searchLink>; Department of Pneumology and Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany.<br /><searchLink fieldCode="AU" term="%22Rockstroh+J%22">Rockstroh J</searchLink>; Department of Medicine I, Bonn University Hospital, Bonn, Germany.<br /><searchLink fieldCode="AU" term="%22Rohn+H%22">Rohn H</searchLink>; Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Lehmann+C%22">Lehmann C</searchLink>; Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.<br /><searchLink fieldCode="AU" term="%22Tepasse+PR%22">Tepasse PR</searchLink>; Department of Internal Medicine B, Hepatology, Endocrinology and Clinical Infectiology, University Hospital Münster, Münster, Germany.<br /><searchLink fieldCode="AU" term="%22Schmidt+B%22">Schmidt B</searchLink>; Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.<br /><searchLink fieldCode="AU" term="%22Dragano+N%22">Dragano N</searchLink>; Medical Faculty and University Hospital, Institute of Medical Sociology, Centre for Health and Society, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Bode+J%22">Bode J</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Luedde+T%22">Luedde T</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.<br /><searchLink fieldCode="AU" term="%22Jensen+BE%22">Jensen BE</searchLink>; Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of Heinrich Heine, University Hospital Düsseldorf, University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
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