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Strong age-dependent decrease of vaccine-induced antibody decrease in Sputnik-V, Johnson and Johnson, and Sinopharm vaccinees. Graphs represent the correlation of SARS-CoV-2 specific spike-protein binding IgG and IgA with age in Moderna (A, B), BioNTech (C, D), AstraZeneca (E, F), Sputnik-V (G, H), Johnson and Johnson (I, J), and Sinopharm (K, L) vaccinees. Dots represent individual donors. Indicated r values were calculated using Spearman’s rank-order analysis.
