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Deprecated: Implicit conversion from float 215.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 PLoS+One 2021 ; 16 (3): e0248918 Nephropedia Template TP
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Antibody kinetics and clinical course of COVID-19 a prospective observational study #MMPMID33750984
Blackberg A; Fernstrom N; Sarbrant E; Rasmussen M; Sunnerhagen T
PLoS One 2021[]; 16 (3): e0248918 PMID33750984show ga
BACKGROUND: Serological response and association to clinical manifestation is important for understanding the pathogenesis of COVID-19. MATERIALS AND METHODS: A 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. RESULTS: Forty patients with COVID-19, hospitalized at Skane 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. CONCLUSION: IgG and IgA antibodies towards the spike protein follow different kinetics during COVID-19 and patients with severe disease develop higher antibody levels.