Fig. 5.

Vaccination-induced changes in gut Gram+/Gram− ratio and species abundance. a Ratios of Gram+/Gram– bacteria from baseline to 6 months p.v. (log2-transformed). P values were given by paired Wilcoxon’s rank-sum tests and were FDR-corrected. b Fold changes of abundances of species altered at 1 month vs. baseline in the BNT162b2 group. c Fold changes of abundances of species altered at 1 month vs. baseline in the CoronaVac group. Red asterisks denote species that did not recover to baseline at 6 months p.v. Elements on boxplots: centre line, median; box limits, upper and lower quartiles; whiskers, 1.5×IQR; points, outliers