If some of those virulence factors are under control of quorum sensing mechanisms, certainly you can inhibit their expression through quorum quenching molecules keeping cells alive

Dear Miguel,

Thank you for that answer, it's very interesting

yes, of course, but do you have any idea of the method to enhance it?

Yes you can. If we know for example metabolic way on how a toxin is synthetized we can target an enzyme responsible for it production. It is demonstrated that statin used in human medecin for traitment of hypercholestrol could inhibite production of the golden pigment of S. aureus making it no virulent