Serological Characterization and Prevalence of spvR Genes in Salmonella Isolated from Foods Involved in Outbreaks in Brazil
Abstract:Salmonella strains (n = 75) isolated from foods involved in foodborne outbreaks occurred in Rio Grande do Sul State, Brazil, during 1999 and 2000 were studied. Strains were serotyped and submitted to PCR analysis to verify the prevalence of Salmonella plasmid virulence (spvR) regulatory gene. Among the 75 isolates, 73 (97%) were classified as Salmonella enterica serovar Enteritidis. All of the Salmonella strains isolated in 1999 were classified as serotype Enteritidis, whereas in 2000 two isolates were serotyped as Salmonella Derby and Salmonella Typhimurium. Regarding the prevalence of spvR gene, 62 strains (82.7%) were PCR positive, and a positive correlation (P < 0.05) between the strains of Salmonella Enteritidis and the presence of spvR gene was demonstrated, which suggests that this gene is a characteristic of the Salmonella Enteritidis analyzed.
Document Type: Short Communication
Affiliations: 1: Faculdade de Biociências, PUCRS, Av. Ipiranga, 6681, prédio 12A, Cep 90619-900, Porto Alegre, Brazil 2: Instituto de Ciência e Tecnologia de Alimentos, UFRGS, Av. Bento Gonc¸alves 9500, prédio 43212, Caixa Postal 15090, Cep 91501-970, Porto Alegre, Brazil 3: Instituto de Ciência e Tecnologia de Alimentos, UFRGS, Av. Bento Gonc¸alves 9500, prédio 43212, Caixa Postal 15090, Cep 91501-970, Porto Alegre, Brazil 4: Centro de Diagnóstico e Pesquisa em Patologia Aviária, UFRGS, Av. Bento Gonc¸alves, 9500, prédio 43212, Caixa Postal 15090, Cep 91501-970, Porto Alegre, Brazil 5: Instituto de Ciência e Tecnologia de Alimentos, UFRGS, Av. Bento Gonc¸alves 9500, prédio 43212, Caixa Postal 15090, Cep 91501-970, Porto Alegre, Brazil
Publication date: June 1, 2004
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