Time-kill assay. Log10 CFU of Salmonella Typhimurium NCTC 74 at various time intervals in presence of cotrimoxazole (2 μg), CFS (80 AU/ml) alone and in combination i.e CTZ(2 μg/ml) + CFS (80 AU/ml). Values are expressed as mean ± S.D. of three individual values. *p < 0.05 vs. CTZ (10 ug/ml) and CFS (12 AU/ml).