Repression of virulence by Staphylococcus aureus strains from different Agr groups has been demonstrated in vitro and is proposed as a means of competitive interference. Here, using the insect Manduca sexta, we show for the first time that this interference also occurs in vivo within a mixed population.
Fleming, V., Feil, E., Sewell, A. K., Day, N., Buckling, A., & Massey, R. C. (2006). Agr interference between clinical Staphylococcus aureus strains in an insect model of virulence. Journal of Bacteriology, 188(21), 7686-7688. https://doi.org/10.1128/jb.00700-06