Most of the virulence factors encoded by the genes found in this study (agg, efaAfs, efaAfm, ace, acm, ebpA, ebpB, ebpC) are involved in adhesion to host tissues, which is the first stage of biofilm formation, urinary tract infections and endocarditis [8,9,37,40,41,42]. This evidence concerns the gene ACE and urinary tract infection.