Volume 29, Number 12—December 2023
Dispatch
Neurotropic Highly Pathogenic Avian Influenza A(H5N1) Virus in Red Foxes, Northern Germany
Figure 2
![Results of testing for highly pathogenic avian influenza virus in red foxes (Vulpes vulpes), Germany. A) Microscopic findings in the brain of an influenza A(H5N1) virus‒infected red fox showing a lymphocytic to histiocytic perivascular encephalitis (hematoxylin and eosin stained, scale bar = 50 μm). B) Immunohistochemical demonstration of influenza A virus nucleoprotein in neurons (arrows) and glial cells (arrowheads) in the cerebrum of a virus‒infected red fox (avidin biotin complex method, scale bar = 20 μm).](/eid/images/23-0938-F2.jpg)
Figure 2. Results of testing for highly pathogenic avian influenza virus in red foxes (Vulpes vulpes), Germany. A) Microscopic findings in the brain of an influenza A(H5N1) virus‒infected red fox showing a lymphocytic to histiocytic perivascular encephalitis (hematoxylin and eosin stained, scale bar = 50 μm). B) Immunohistochemical demonstration of influenza A virus nucleoprotein in neurons (arrows) and glial cells (arrowheads) in the cerebrum of a virus‒infected red fox (avidin biotin complex method, scale bar = 20 μm).
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