Figure 2From: Staphylococcus aureus intramammary challenge in non-lactating mammary glands stimulated to rapidly grow and develop with estradiol and progesteroneLuminal immune cell invasion scoring. The presented quarter lobules were used to characterize the degree of luminal immune cell invasion observed in saline and Staph. aureus quarter lobules; scores 1–3 are presented. A Depicts a score of 1 which signifies no luminal infiltration; B depicts a score of 2 with infiltration in fewer than half the lobule lumens (arrows); and C denotes a score of 3 which is marked infiltration in most lumens. Scale bars = 200 µm.Back to article page