Caracterization of Aujeszky's disease virus isolated from South Brazil in the last twenty years by restriction enzyme analysis

Brazilian Journal of Microbiology

Rejane Schaefer²  Janice Ciacci Zanella²  Nelson Mores²  Kleitton Adolfo Pan¹  Régia Maria Feltrim Dambros¹  Marisete Fracasso Schiochet²  Michele Coldebella¹ 

[1] ,Embrapa Suínos e AvesConcórdia Santa Catarina ,Brasil

关键词: Aujeszky's disease virus;    swine;    restriction endonuclease analysis;    vírus da doença de Aujeszky;    suínos;    análise com endonuclease de restrição;   

DOI  :  10.1590/S1517-83822006000300035

来源: SciELO

【 摘 要 】

Aujeszky's disease virus (ADV) belongs to Herpesviridae family and is an important etiological agent which infects pigs causing economic losses in swine producing countries worldwide and international trade restrictions to products of swine origin. An eradication program for ADV was established in Santa Catarina State since 2001. The last outbreak was reported in July 2004 and since then none has been reported. The disease has been controlled with the use of a genetic modified vaccine and elimination of seropositives. Aiming the characterization of ADV isolated in the South of Brazil in the last twenty years (1983-2003), a retrospective study based on the genomic analysis of the isolates through a digestion of viral genomic DNA with restriction enzyme Bam HI was done. Thirty-seven ADV samples isolated from swine from the States of Santa Catarina, Parana and Rio Grande do Sul were analyzed. These isolates were compared to the reference strains NIA-4, Bartha and Begonia. The most predominant genomic arrangement was type II found in 33 samples isolated in Santa Catarina State and in one isolate from Rio Grande do Sul State. Genomic arrangement type I, characteristic of vaccine strains was identified in 2 isolates from Parana State and in 1 isolate from Rio Grande do Sul State.

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