University of Oslo - Section for Clinical Immunology and Infectious Diseases, Universidad Autónoma de Madrid - Hospital Universitario La Paz. IdiPAZ, Sorbonne University - Institut Pierre-Louis d'Epidémiologie et de Santé Publique, University of Oslo - Institute of Clinical Medicine, University of Lille, affiliation not provided to SSRN, University of Verona, Hospital Universitario Virgen Macarena - Unidad Clínica de Enfermedades Infecciosas, affiliation not provided to SSRN, Université Libre de Bruxelles (ULB), Medical University of Innsbruck, Government of Portugal - Unidade Local de Saúde de São João, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Oslo - Oslo University Hospital, University of Oslo - Oslo University Hospital, University of Oslo - Oslo University Hospital, Sorbonne University, University of Oslo - Division of Emergencies and Critical Care, University of Claude Bernard Lyon 1, affiliation not provided to SSRN, University of Pécs, National and Kapodistrian University of Athens, University Hospital Brno, University of Basel - University Hospital Basel, Hacettepe University, Technische Universität München (TUM), Hospices Civils de Lyon - Département des Maladies Infectieuses et Tropicales, Sorbonne University - Institut Pierre Louis d'Épidémiologie et de Santé Publique IPLESP, University of Oslo - Oslo University Hospital, Sorbonne University, University of Oslo - Oslo University Hospital, affiliation not provided to SSRN, Vestre Viken Hospital Trust, Groupe Hospitalier de la Région Mulhouse Sud-Alsace, University of Oslo - Institute of Clinical Medicine, University of Stavanger - Stavanger University Hospital, Hospital Universitario La Paz, Vestre Viken Hospital Trust, University Hospital North Norway, Hospices Civils de Lyon - Service de Médecine Intensive-Réanimation, Akershus University Hospital - Department of Infectious Diseases, Norwegian Institute of Public Health, Sorbonne University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Oslo - Department of Immunology and Transfusion Medicine, Hospices Civils de Lyon - Laboratoire de Virologie, University of Nantes - INSERM, University of Oslo - Oslo University Hospital, Norwegian Institute of Public Health, University of Verona - Infectious Diseases, Department of Diagnostic and Public Health, affiliation not provided to SSRN, University of Oslo - Department of Research Support for Clinical Trials and Sorbonne University - Institut Pierre Louis d'Épidémiologie et de Santé Publique IPLESP