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Quantitation of EPEC-induced cell death by LDH release. (A) LDH activity was measured as described in Materials and Methods in E. coli bacteria alone and in T84 cells treated as indicated for 3 h. uninf, uninfected control. (B) The data in panel A expressed as percent cell death. *, statistically increased in Salmonella-infected compared to both EPEC-infected conditions (P < 0.05).
