Fig. 2
From: From first to second wave: follow-up of the prospective COVID-19 cohort (KoCo19) in Munich (Germany)

Weighted sero-prevalence and sero-incidence in % at follow-up adjusted (orange) and unadjusted (blue) for test specificity and sensitivity. The unadjusted weighted sero-prevalence was 3.4%, the relative number of new cases between baseline and follow-up 1.7%. Adjustment only slightly changed the unadjusted results