Antibiotics promote susceptibility to C. difficile infection through a CCR5-dependent immune response
This study reveals that antibiotics increase susceptibility to *C. difficile* infection not only by disrupting the gut microbiome but also by driving a CCR5-dependent immune imbalance characterized by the expansion of pathogenic CCR5+ immune cells, which can be mitigated by targeting the CCL3/4/5-CCR5 signaling pathway.