Fig. 2
From: A quantitative model for dermal infection and oedema in BALB/c mice pinna
Effect of the physical injury on the mouse pinna in the development of oedema caused by the inoculation of S. pyogenes. The photographs were captured with an objective of 10x and the squares show the 500x magnification. a, c and e) Histological changes observed in the pinna at 2, 4 and 6 days post inoculation respectively, the infection was carried out on a previous injured mouse auricle. b, d and f) No changes were observed in the pinna at 2, 4 and 6 days post inoculation when the bacterium was delivered in the skin of the auricle without any injury