SLC11A1 and Salmonella Infections: Since Nramp-Cg and Nramp-Tg mice control bacterial replication as well as 129×1/SvJ mice during the first 5 days, we asked whether C57BL/6 mice expressing Nramp1G169 survive as well as 129×1/SvJ mice during the establishment of chronic Salmonella infection (Figure 4).