Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/27555
Type: Artigo de periódico
Title: A survey for maintenance of virulent newcastle disease virus-free area in poultry production in Brazil
Author: Orsi, M.A
Doretto Jr, L
Camillo, S.C.A
Reischak, D
Ribeiro, S.A.M
Ramazzoti, A
Mendonça, A.O
Spilki, F.R
Buzinaro, M.G
Ferreira, H.L
Arns, C.W
Abstract: In 2003, Brazil was recognized as a pathogenic Newcastle Disease Virus (NDV) strain-free country for commercial poultry. This research was conducted in Brazil between December 2003 and March 2005 to verify the maintenance of this virulent NDV-free status. Serum samples from 5,455 flocks for commercial poultry farms were collected, comprising 81,825 broiler chickens. The farms were located in nine states of the country, grouped in three geographic regions. Serological evidence of NDV infection was detected in 28.8% of the surveyed farms. However, all fifteen viruses isolated and identified as Newcastle Disease Virus (NDV) were characterized as nonpathogenic strains, based on the Intracerebral Pathogenicity Index. These results showed that Brazil preserves the virulent NDV-free status for commercial flocks.
Subject: Newcastle Disease Virus
pathogenicity
poultry
biological characterization
Editor: Sociedade Brasileira de Microbiologia
Rights: aberto
Identifier DOI: 10.1590/S1517-83822010000200017
Address: http://dx.doi.org/10.1590/S1517-83822010000200017
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200017
Date Issue: 1-Jun-2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
File Description SizeFormat 
S1517-83822010000200017.pdf143.63 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.