Fig. 3.

Shift of individual anti-SARS-CoV-2-IgG ratio from “baseline”- to “follow up”-antibody testing in COVID-19-patients.

Depicted is the individual anti-SARS-CoV-2-IgG antibody ratio (“antibody ratio”) for each study participant being initially positive in the SARS-CoV-2-PCR-testing at the time points “baseline” and “follow up”. The datapoints covering one individual are connected with colored lines; the colors represent an increasing (blue, left), stable (yellow, middle) and decreasing (red, right) antibody ratio.

The exact follow up-IgG antibody ratios (Euroimmun, “IgG (ratio)”) are shown paired with their respective results from the Elecsys® SARS-CoV-2-test (“Elecsys”) in the table below each chart. The colors of the result pairs are matching the respective results in the charts above them. The number of increasing ratios differs highly significantly (p < 0.01) from the stable and decreasing ratios, whereas comparing the stable and decreasing ratios gives no significant difference in their numbers.