Genes significantly associated with animal and human isolates belonging to the ST398 lineage.

*For each gene, isolates with ambiguous microarray result were excluded from the analysis and from P-value calculation. For this reason, percentages are not necessarily calculated relative to the total no. of isolates.**P-values were calculated for each gene using a two-tailed Fisher's exact test and corrected for multiple testing using the Holm-Bonferroni method. Inf, positive infinite.