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. 2015 Oct 12;2015:350526. doi: 10.1155/2015/350526

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Copyright © 2015 Avelino Alvarez-Ordóñez et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Invasive potential of wild-type L. ivanovii isolates in a CACO-2 epithelial cell assay. The strains were incubated with CACO-2 cells in vitro for one hour and levels of bacterial invasion were subsequently measured. For comparison, invasive (EGDe) and noninvasive (PMSC1) strains of L. monocytogenes were also examined. Data represents % invasion efficacy (relative to Listeria numbers initially added per well). Statistical significance was determined using one-way ANOVA and the Dunnett post hoc test with all strains compared to L. monocytogenes EGDe (^* P < 0.05). All strains displayed statistically higher (P < 0.05) levels of invasion efficiency relative to the PMSC1 strain.