Herbert Weissenböck , Tamás Bakonyi, Giacomo Rossi, Paolo Mani, and Norbert Nowotny
Author affiliations: Author affiliations: University of Veterinary Medicine, Vienna, Austria (H. Weissenböck, T. Bakonyi, N. Nowotny); Szent István University, Budapest, Hungary (T. Bakonyi); University of Camerino, Matelica, Italy (G. Rossi); University of Pisa, Pisa, Italy (P. Mani); Sultan Qaboos University, Muscat, Oman (N. Nowotny)
Figure 1. . Immunohistochemical staining with Usutu virus–specific antibody showing virus antigen in the brain of a blackbird that died during an Usutu virus outbreak in Italy, 1996. Numerous neurons show characteristic, frequently coarsely granular cytoplasmic labeling (arrows). Original magnification ×390.
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