TNFSF13B and Salmonella Infections: Interestingly, BAFF from cDCs plays a more prominent role than Nph-BAFF in contributing to systemic BAFF levels and B cell responses against Salmonella infection: whilst FO B cell and PC expansion was reduced in BAFF Nph cKO mice, it was completely abrogated in BAFF cDC cKO infected mice.