Figure 1. Pathologic changes in a goose infected with A/chicken/Miyazaki/K11/2007. A) Outer epidermal necrosis of the feather with inflammation in the inner feather pulp. Hematoxylin and eosin stain. Bar = 120 μm. B) Influenza viral antigens detected in feather epidermal cells. Immunohistochemistry. Bar = 120 μm.
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