Self-Reported Long COVID and Its Association with the Presence of SARS-CoV-2 Antibodies in a Danish Cohort up to 12 Months after Infection

• DOI: 10.1128/spectrum.02537-22
• Publication Date: 2022-11-09T14:02:19Z
• Authors: Kamille Fogh; Tine Graakjær Larsen; Cecilie B. Hansen; Rasmus B. Hasselb...; Alexandra R. R. E...; Henning Bundgaard; Ruth Frikke-Schmidt; Linda M. Hilsted; Lars Østergaard; Isik S. Johansen; Ida Hageman; Peter Garred; Kasper Iversen
• Keywords: Danish; 2019-20 coronavirus outbreak

This cohort study included questionnaire data as well anti-nucleocapsid antibody analysis, allowing us to determine whether participants were seropositive due vaccination or natural infection. The emphasizes the importance of early confirmation COVID-19, antibodies recede with time, and it indicates an overlap between long COVID symptoms possibly another origin.