Figure 3

Haematoxylin and Eosin stained histological sections of kidney tissues with varying degrees of infection. Lightly infected kidney with no apparent pathological changes (a) and (b), heavily infected kidney with severe pathological changes (c) and (d). Note the obvious necrotic areas around kidney tubules (thin arrow) (c) and necrosis of tubular epithelial cells (broad arrow) with protein cast and necrotic cell debris within tubules (thin arrow) (d). Scale bar = 100 μm.