Emerging Infectious Disease ISSN: 1080-6059

Avian Bornaviruses in Psittacine Birds from Europe and Australia with Proventricular Dilatation Disease

Herbert Weissenböck, Tamás Bakonyi, Karin Sekulin, Felix Ehrensperger, Robert J.T. Doneley, Ralf Dürrwald, Richard Hoop, Károly Erdélyi, János Gál, Jolanta Kolodziejek, and Norbert Nowotny

Author affiliations: University of Veterinary Medicine, Vienna, Austria (H. Weissenböck, T. Bakonyi, K. Sekulin, J. Kolodziejek, N. Nowotny); Szent István University, Budapest, Hungary (T. Bakonyi, J. Gál); University of Zürich, Zürich, Switzerland (F. Ehrensperger, R. Hoop); West Toowoomba Veterinary Surgery, Toowoomba, Queensland, Australia (R.J.T. Doneley); IDT Biologika GmbH, Dessau-Rosslau, Germany (R. Dürrwald); Central Veterinary Institute, Budapest (K. Erdélyi); International Atomic Energy Agency, Seibersdorf, Austria (J. Kolodziejek)

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Figure 2

Avian bornavirus protein demonstrated by immunohistochemical testing in extracerebral locations. A) within neurons of proventricular intramural vegetative ganglia with inflammatory infiltration, bar = 25 µm; B) within nerve fibers of the myenteric plexus of gizzard, bar = 25 µm; C) within smooth muscle fibers of the proventricular wall, bar = 50 µm; D) within a modified muscle fiber of the conductive system of the heart, bar = 50 µm; E) within myocardiocytes, bar = 25 µm.

Figure 2. Avian bornavirus protein demonstrated by immunohistochemical testing in extracerebral locations. A) within neurons of proventricular intramural vegetative ganglia with inflammatory infiltration, bar = 25 µm; B) within nerve fibers of the myenteric plexus of gizzard, bar = 25 µm; C) within smooth muscle fibers of the proventricular wall, bar = 50 µm; D) within a modified muscle fiber of the conductive system of the heart, bar = 50 µm; E) within myocardiocytes, bar = 25 µm.

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