Evolution of the Rhodococcus equi vap Pathogenicity Island Seen through Comparison of Host-Associated vapA and vapB Virulence Plasmids

Michal Letek, Alain A. Ocampo-Sosa, Mandy Sanders, Ursula Fogarty, Tom Buckley, Desmond P. Leadon, Patricia Gonzalez, Mariela Scortti, Wim G. Meijer, Julian Parkhill, Stephen Bentley and Jose A. Vazquez-Boland

Journal of Bacteriology 190 ( 17 ): 5797 - 5805 , 2008