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Brazilian Journal of Microbiology

Print version ISSN 1517-8382On-line version ISSN 1678-4405


SCHAEFER, Rejane et al. Caracterization of Aujeszky's disease virus isolated from South Brazil in the last twenty years by restriction enzyme analysis. Braz. J. Microbiol. [online]. 2006, vol.37, n.3, pp.390-394. ISSN 1517-8382.

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.

Keywords : Aujeszky's disease virus; swine; restriction endonuclease analysis.

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