Number and percentage of STs of recent and historical <i>B</i>. <i>hyodysenteriae</i> isolates possessing different combinations of the six plasmid-borne virulence-associated genes

<p>Number and percentage of STs of recent and historical <i>B</i>. <i>hyodysenteriae</i> isolates possessing different combinations of the six plasmid-borne virulence-associated genes