Fig. 4

Relative abundance of species at the classification level of Genus in the control group. A total of 99 genera were found at the classification level of genus. Among the 99 genera of bacteria in the control group, Bacteroides was the predominant genus in the control group (32.39%, in brown), Unclassified was 13.63% in shallow orange, Blautia was 11.28% in blue, Faecalibacterium was 8.46% in red, Escherichia was 5.01% in orange, Ruminococcus was 4.10% in shallow blue, and so on. Among these genera in contrast, a total of 15 species, including Anaerostipes, Bifidobacterium, Blautia, Collinsella, Dialister, Dorea, Erysipelatoclostridium, Faecalibacterium, Lactobacillus, Oscillibacter, Prevotella, Roseburia, Ruminococcus, Terrisporobacter showed a higher abundance in the ALL group