Figure 1.

Twelve-Month Longitudinal Study of Seroconversion Dynamics Using S- and N-Protein-Directed Antibody Detection in Individuals Vaccinated with Janssen Ad26.COV2.S COVID-19 Vaccine. This figure displays the percentage of subjects seroconverting against S (spike) and N (nucleocapsid) proteins, segmented by the detection of S-IgG, S-IgM, S-IgA and N-IgG and N-IgM antibodies. Data is stratified based on baseline S-IgG seropositivity: baseline positives are indicated in pink, and negatives in blue. N-directed antibodies were monitored as a proxy for predicting potential infection, categorized as either IgG (indicating previous exposure) or IgM (indicating current exposure).