Fig. 3
From: Population shift in antibody immunity following the emergence of a SARS-CoV-2 variant of concern

Concurrent population shift in neutralizing immunity with the expansion to dominance of the Beta variant. (A) Neutralization titers (represented as inhibitory dose at 50% reduction of signal, ID50) of the D614G and Beta variants. Samples classified as D614G (turquoise), Beta (purple), double neutralizer (blue) or non-neutralizer (grey) over November 2020, December 2020, January 2021 and February 2021. (B) Geometric mean titers (GMT) of the double neutralizers (with the capacity to neutralize both the D614G and Beta variants were) are displayed over the sampling period. F-statistic and p value are displayed and were calculated using F-test for linear regression slopes. (C) Number of samples tested and the minimum frequency of Beta sequences for each month displayed.