Skip to main content
. 2021 Jul 30;11(7):136. doi: 10.1038/s41408-021-00528-x

Fig. 1. Infographic of study design and collection.

Fig. 1

Samples were collected from patients who had undergone dual vaccination with either an ‘extended interval’ (n = 286) or ‘standard interval’ regimen (n = 13). Antibody levels in serum samples obtained by phlebotomy or in eluates from dried blood spot samples were assessed at the indicated timepoints.