Figure 5From: Local host response following an intramammary challenge with Staphylococcus fleurettii and different strains of Staphylococcus chromogenes in dairy heifers The average concentration of IL-8. IL-8 (pg/mL) was determined in quarter milk before and after experimental intramammary challenge with Staphylococcus fleurettii, S. chromogenes TA (teat apex strain), S. chromogenes IM (intramammary strain) and phosphate-buffered saline (control). The error bars represent the standard error of the mean (+SEM). IL-8 was not detected in the control quarters.Back to article page