CLDN2 and Salmonella Infections: Salmonella induced reduction of the TER in both cells with normal claudin-2 expression (447.3 Ω.cm2) and with low cluadin-2 (840 Ω.cm2) at 30 minutes postinfection: Salmonella infection reduces TER values to around 50% initial values in both cells, regardless of the claudin-2 level.