When stratified by outcome, the percentage of participants with ≥4-fold increases in S. sonnei LPS specific IgG/IgA levels from α4β7+ and α4β7− ASC were overall similar between participants developing or not developing shigellosis post-challenge, as shown by overlapping 95% confidence intervals (CIs) (Supplementary Fig. 1). Here, CD79A is linked to shigellosis.