Fig. 2. Fold-change of neutralizing antibody titers between variant depicted on y-axis and variant on x-axis.

For each single exposure (unvaccinated ancestral n = 10, alpha n = 10, beta n = 8, delta n = 7, BA.1 omicron n = 18, or BA.2 omicron n = 12 convalescent individuals) or two-dose vaccinated serum (n = 41) the fold change of neutralizing antibody titers for the different variants was calculated. Part of the neutralizing antibody titers used for the calculation of fold changes have been previously published in^1,2. Shown are individual patients (circles) and geometric mean fold changes (bars).