Fig. 2.

The composition and α diversity of the gut microbiota in the normal control (NC) and RV-infected (RV) suckling mice were detected by 16S rRNA sequencing. The RV and NC groups contained 10 litters of mice. There were 7–8 mice in each litter. a A Venn diagram showing the overlap in the differential abundance of the operational taxonomic units (OTUs) in the NC and RV groups. b The bacterial diversity in the RV and NC groups was estimated by the observed-species diversity index. c The bacterial diversity in the RV and NC groups was estimated by the Shannon index. d The bacterial diversity in the RV and NC groups was estimated by the Simpson index