“…31,32 The human microbiome plays important roles in immune regulation and self-tolerance. 33 Disturbance of the intestinal microbiome has been linked to several autoimmune diseases, including IBD, 34,35 rheumatoid arthritis, [36][37][38][39][40] and at least 1 category of JIA. 14 After antibiotic treatment, commensal microbial populations often recover within ∼3 months, including in young children.…”