Antibody kinetics and clinical course of COVID-19 a prospective observational study.

Autor: Anna Bläckberg, Nils Fernström, Emma Sarbrant, Magnus Rasmussen, Torgny Sunnerhagen
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: PLoS ONE, Vol 16, Iss 3, p e0248918 (2021)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0248918
Popis: BackgroundSerological response and association to clinical manifestation is important for understanding the pathogenesis of COVID-19.Materials and methodsA prospective observational study was conducted where antibody responses of IgG and IgA towards SARS-CoV-2 spike protein were studied over time in patients with COVID-19. Possible associations between antibody titers and outcome were analyzed.ResultsForty patients with COVID-19, hospitalized at Skåne University hospital, Sweden, between April and June 2020 were included. IgG antibody responses were detected for all patients with the highest levels four weeks after COVID-19 diagnosis. Levels of IgA were generally higher at diagnosis and decreased towards baseline 4 weeks after confirmed COVID-19. Patients with severe COVID-19 had higher levels of antibodies directed against SARS-CoV-2 spike protein compared with patients with mild disease.ConclusionIgG and IgA antibodies towards the spike protein follow different kinetics during COVID-19 and patients with severe disease develop higher antibody levels.
Databáze: Directory of Open Access Journals