Emerging Infectious Disease ISSN: 1080-6059

Transmission of Equine Influenza Virus to English Foxhounds

Janet M. Daly*

, Anthony S. Blunden*, Shona MacRae*, Jodi Miller*, Samantha J. Bowman*, Jolanta Kolodziejek†, Norbert Nowotny†, and Ken C. Smith*

Author affiliations: *Animal Health Trust, Kentford, Newmarket, Suffolk, UK; †University of Veterinary Medicine, Vienna, Austria;

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Figure 1

Immunohistochemical staining for equine influenza A virus (brown stain) in sections of respiratory tissue from English foxhounds involved in 2002 respiratory disease outbreak, United Kingdom. A) Case 1, showing focal staining of an apparently necrotic bronchiole in an area of pneumonia; magnification x100. B) Case 2, showing a large amount of staining throughout the epithelium and inflammatory cells present in the brush border; magnification x200; hematoxylin counterstain.

Figure 1. Immunohistochemical staining for equine influenza A virus (brown stain) in sections of respiratory tissue from English foxhounds involved in 2002 respiratory disease outbreak, United Kingdom. A) Case 1, showing focal staining of an apparently necrotic bronchiole in an area of pneumonia; magnification x100. B) Case 2, showing a large amount of staining throughout the epithelium and inflammatory cells present in the brush border; magnification x200; hematoxylin counterstain.

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