Fig 5. Secretory and inflammatory responses induced by ST19 (grey bars) and ST313 S. Typhimurium strains (maroon bars) in bovine ligated ileal loops.

A. Mean fluid accumulation normalised to loop length [volume (mL)/length (cm)]. B. Influx of ¹¹¹In-labelled PMN for test strains normalized to loop length and negative control loops, as described in Methods. Values represent the mean ± SEM of triplicate determinations in two independent calves. Right panel of A and B shows summary of paired T-test results. Asterisks show statistically significant pairwise comparisons. C. Influx of ¹¹¹Indium oxinate-labelled polymorphonuclear leukocytes (PMN) induced by ST313 isolates relative to the negative control.