In both groups level of IgG antibodies against SARS-CoV-2 will be measured at the Day 1 (10 weeks from the date of first symptoms), Weeks 8 and 16 from the Day 1.
This is prospective cohort study aimed to compare antibody response against SARS-CoV-2 in dialysis patients and non-dialysis-dependent volunteers.~The research hypothesis is that dynamic of IgG antibodies against SARS-CoV-2 will differ in two groups.~To determine whether there is a statistically significant interaction between factors group and time on the titer of IgG antibodies against SARS-CoV-2, a two-way repeated measures ANOVA will be used.