Fig. 7From: Persistent effects of intramammary ceftiofur treatment on the gut microbiome and antibiotic resistance in dairy cattleEffects of intramammary (IMM) ceftiofur treatment on the abundance of plasmids, virulence factors and viruses. The median, lower, and upper quartiles are shown in each boxplot with the whiskers representing extreme values in the distribution. P-values were calculated with the Wilcoxon signed rank test to compare the ceftiofur-treated and control cows within a sampling pointBack to article page