Apewokin et al.16 performed a genome-wide logistic regression analysis of CDI in 646 patients (57 cases; 589 controls) undergoing stem cell transplantation for multiple myeloma, and found several single nucleotide variants (SNVs) in the RLBP1L1, ASPH, and P7B genes that were associated with higher risk of CDI. This evidence concerns the gene CLVS1 and clostridium difficile infection.