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Gewählte Publikation:

Publikationstyp: Zeitschriftenaufsatz
Dokumentart: Originalarbeit

Publikationsjahr: 2007

AutorInnen: Chvala, S; Bakonyi, T; Bukovsky, C; Meister, T; Brugger, K; Rubel, F; Nowotny, N; Weissenböck, H

Titel: Monitoring of Usutu virus activity and spread by using dead bird surveillance in Austria, 2003-2005.

Quelle: Vet Microbiol. 2007; 122(3-4):237-245



Autor/innen der Vetmeduni Vienna:

Bakonyi Tamas
Brugger Katharina
Chvala-Mannsberger Sonja
Nowotny Norbert
Rubel Franz
Schaller Christiane
Weissenböck Herbert

Beteiligte Vetmed-Organisationseinheiten
Abteilung für Physiologie und Biophysik
Institut für Pathologie
Institut für Virologie
Universitätsklinik für Schweine


Zugehörige(s) Projekt(e): Kontinuierliche Überwachung der Usutu Virus Infektion in Österreich - geographische Ausbreitung, empfängliche Spezies und Erkennung von Fällen beim Menschen

Anwendung eines Mathematischen Modells zur Erklärung der Usutu-Virus Dynamik im Großraum Wien


Abstract:
Usutu virus has been causing avian mortality in Austria since its emergence in 2001. Between 2003 and 2005 a total of 504 dead birds were examined by reverse-transcriptase polymerase chain reaction and immunohistochemistry for the presence of Usutu virus nucleic acid and antigen, respectively. In 2003, 92 birds (out of 177 birds) belonging to five different species were positive, while in 2004, only 11 (of 224) birds, and in 2005, 4 (of 103) birds proved positive, all of which were blackbirds (Turdus merula). Within the surveillance period the virus had spread from its initial area of emergence and circulation, the surroundings of Vienna, to large areas of the federal states of Lower Austria, Burgenland and Styria. However, the absolute numbers of Usutu virus associated avian deaths declined significantly during the course of the years. In addition, the proportion of birds with low amounts of virus in their tissues increased continuously, which may indicate developing herd immunity.

Keywords Pubmed: Animals
Animals, Wild/virology
Antigens, Viral/analysis
Austria/epidemiology
Base Sequence
Bird Diseases/epidemiology*
Bird Diseases/mortality*
Bird Diseases/virology
Birds
Flavivirus/isolation & purification*
Flavivirus/pathogenicity
Flavivirus Infections/epidemiology
Flavivirus Infections/mortality
Flavivirus Infections/veterinary*
Immunohistochemistry/veterinary
Molecular Sequence Data
Reverse Transcriptase Polymerase Chain Reaction/methods
Reverse Transcriptase Polymerase Chain Reaction/veterinary
Sentinel Surveillance/veterinary*


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