(A) PCoA based on the weighted UniFrac distance between recovered NJI and non-NJI at 0, 1, 3, 6, and 12 months, indicating that the microbial communities became more uniform over time. Fecal microbiota composition at the phylum level (B) and genus level (C) between recovered NJI and non-NJI. (D) Compared with recovered NJI, one phylum was significantly decreased in non-NJI (P<0.05). (E) Three genera were increased in non-NJI versus recovered NJI (all P<0.05). Abbreviations: M0, 0 month; M1, 1 month; M3, 3 months; M6, 6 months; M12, 12 months.