“…Listeria monocytogenes has been considered an emerging foodborne pathogen since 1980 due to sporadic cases and outbreaks of listeriosis that have been associated with the consumption of contaminated foods (Luber et al, 2011;McLauchlin, Mitchell, Smerdon, & Jewell, 2004). Considering the severity of symptoms and the high mortality rate (Allerberger & Wagner, 2010;Colodner et al, 2003;Jiang et al, 2008;Kerr, Dealler, & Lacey, 1988;Lamont et al, 2011;Warriner & Namvar, 2009), several studies were developed to identify the main sources of contamination and relevant foods associated with this pathogen and to characterise its virulence factors (Autio et al, 1999;Barbalho, Almeida, Almeida, & Hofer, 2005;Barros et al, 2007;Cordano & Rocourt, 2001;Gudbjornsdottir et al, 2004;Jiang et al, 2008;Lecuit, 2005;Linnan et al, 1988;Nucera et al, 2010;Peccio, Autio, Korkeala, Rosmini, & Trevisani, 2003;Thevenot, Dernburg, & Vernozy-Rozand, 2006;Vitas, Aguado, & Garcia-Jalon, 2004;von Laer et al, 2009;Warriner & Namvar, 2009).…”