Fig. 3: Percent of individual plasma samples in each study showing any titer of Omicron BA.1 neutralization.

The percent of total samples within a study which neutralized Omicron BA.1 graphed in increasing percentages on left y axis with the total number of samples tested on the right y axis. a pre-Alpha CCP neutralization of Omicron BA.1; b Alpha, Beta and Delta CCP neutralization of Omicron BA.1; c 2-dose mRNA vaccines neutralization of Omicron BA.1 d post-COVID-19/post-vaccine (Vax-CCP) and uninfected 3-dose vaccine neutralization of Omicron BA.1. Source data are provided as a Source Data file.