Creation of a pandemic memory by tracing COVID-19 infections and immunity in Luxembourg (CON-VINCE).

"Declarations Ethics approval and consent to participateThis study was conducted according to the Ethical Principles for Medical Research Involving Human Subjects, as stated in the 2013 revised version of the 1964 World Medical Association Declaration of Helsinki. The national research ethics committee (Comité National d’Ethique de Recherche, CNER) and the Luxembourgish Ministry of Health (references 202004/01 and 831 × 6ce0d, respectively) approved the study. Trial registration number is NCT04379297.All participants completed an electronic Informed Consent Form and had the right to withdraw from the study at any time. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding The CON-VINCE Study is funded by the National Research Fund Luxembourg (14716281/ CONVINCE/ Kruger) and the André Losch Foundation (Luxembourg). This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 101016167. The views expressed in this paper are the sole responsibility of the authors and the Commission is not responsible for any use that may be made of the information it contains."

"Trial registration Trial registration number: NCT04379297, 10 April 2020. "