We also observed other IgA coated microbes in the fecal (e.g., Lachnospiraceae, Ruminococcaceae) and salivary (e.g., Prevotellaceae, Actinobacillus) samples from axSpA patients, which have been shown to be associated with various spondyloarthropathies (12, 14). This evidence concerns the gene CD79A and spondyloarthropathy.