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Volume 18, Number 12—December 2012

Research

Virulent Avian Infectious Bronchitis Virus, People’s Republic of China

Jinling Feng, Yanxin Hu, Zhijun Ma, Qi Yu, Jixun Zhao, Xiaodong Liu, and Guozhong ZhangComments to Author 
Author affiliations: Author affiliations: The Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, China Agricultural University, Beijing, People’s Republic of China (J.L. Feng, Y.X. Hu, J.X. Zhao, G.Z. Zhang); Animal Husbandry and Veterinary Station of Beijing, Beijing (Z.J. Ma, Q. Yu, X.D. Liu)

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Figure 5

Histopathologic analysis (hematoxylin and eosin stain) of tissues from 30-day-old chickens infected with infectious bronchitis virus YN strain. B) Trachea, extensive dropout, degeneration, and necrosis of the ciliated epithelial cells (black arrow). Scale bar = 100 μm. D) Lung tissue with hemorrhage (black arrow), congestion, and lymphocytic infiltration in alveolar lumen (white arrow). Scale bar = 50 μm. F) Kidney tissue with severe renal lesions, including degeneration (white arrow), and necro

Figure 5. . Histopathologic analysis (hematoxylin and eosin stain) of tissues from 30-day-old chickens infected with infectious bronchitis virus YN strain. Panels A, C, E, and G, correspond to control tissues. B) Trachea, extensive dropout, degeneration, and necrosis of the ciliated epithelial cells (black arrow). Scale bar = 100 μm. D) Lung tissue with hemorrhage (black arrow), congestion, and lymphocytic infiltration in alveolar lumen (white arrow). Scale bar = 50 μm. F) Kidney tissue with severe renal lesions, including degeneration (white arrow), and necrosis of renal tubular epithelial cells, lymphocytic infiltration in the interstitium (black arrow), exfoliated renal tubular epithelial cells and erythrocytes were observed extensively. Scale bar = 50 μm. H) Bursa tissue with serous atrophy of lymphoid follicles and widening of the interstitium were observed in bursa of Fabricius (black arrow). Scale bar = 200 μm.

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