Introduction: Our study aimed to analyze virus-specific humoral immune responses in COVID-19 patients with varying disease severity.
Methodology: A total of 109 serum samples from 87 patients, symptomatic for COVID-19 were studied using anti-SARS-CoV-2 immunoassays detecting different classes of immunoglobulins.
Results: Clinical samples were divided into 2 groups - collected up to and more than 2 weeks post-onset of symptoms (PoS).