Statistical analysis of S. enterica spinach and tomato attachment assays with and without chlorine treatment.

aST LT2 wild type strain under the same condition is used as a reference in t-test analysis.bSP wild type strain under the same condition is used as a reference in t-test analysis.c(−) and d(+) represent without and with chlorine treatment, respectively.eAll values are given as probability (P). P>0.05 indicates not significant (NS).