Fig. 2

Abundances of viral taxonomic groups. a Boxplots showing relative abundances of viral taxonomic groups identified in this data by the Kaiju metagenomic classifier. Unclassified viruses refer to sequences classified as viral but not to any specific taxonomic group. Wilcoxon rank sum test was used to determine statistical differences in relative abundance between the donors and recipients pre-FMT and is indicated by asterisks; *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001. Whiskers indicate the highest or lowest occurring value within 1.5*IQR (interquartile range) of the upper or lower quartile