Correlation of bacterial diversity and CARD15/NOD2 status of patients with Crohn’s disease (CD). Six of the 26 patients (30%) tested CARD15/NOD2 positive (detection of at least one of the three major single nucleotide polymorphisms—SNP8, SNP12, and SNP13). Diversity, indicated as number of bands and as weighted diversity score, was not significantly different in the CARD15/NOD2 positive group compared with wild-type patients (p = 0.063 and p = 0.11, respectively).