Figure 5
From: S1 gene sequence analysis of a nephropathogenic strain of avian infectious bronchitis virus in Egypt
Trachea and kidney histopathology following experimental infection of 1-day old chickens with Egypt/F/03. Trachea and kidney stained with H & E: a. Trachea of chickens 5 d P.I with Egypt/F/03 showed hyperplasia, lymphcytic infiltration and oedema (40 ×). b. Trachea of chickens 7 d P.I with Egypt/F/03 showed diffuse lymphocytic aggregation, degeneration of the epithelium mucus, and haemorrhages (20 ×). c. Kidney of chickens 5 d P.I with Egypt/F/03 showed focal lymphocytic aggregation in the interstitium and in the glomeruli, as well as degenerative changes in tubular epithelium (40 ×). d. Kidney of chickens 7 d P.I with Egypt/F/03 showed massive renal haemorrhages and degeneration renal tubular epithelium (20 ×).