Fig. 2: Trends in SARS-CoV-2 seroprevalence from June 2020 to May 2021 in children in Germany.

Two-month-average point estimates of the prevalence of Severe Acute Respiratory Syndrome Coronavirus 2 immunoglobulin G antibodies as determined by an enzyme-linked immunosorbent assay in blood samples from 10,358 paediatric study participants. The black dots display the respective point estimates of the prevalences and the wkiskers (lines at the black dots) the 95% confidence intervals of the point estimates. The predicted probability according to a b-spline regression model (grey solid line) with 95% confidence band (grey dashed lines).