Clonal relationship among Salmonella enterica serovar Enteritidis involved in foodborne outbreaks in Southern Brazil

Oliveira, Fabrício Augusto de; Geimba, Mercedes Passos; Pasqualotto, Ana Paula; Brandelli, Adriano; Pasquali, Giancarlo; Silva, Wladimir Padilha da; Tondo, Eduardo César

doi:10.1016/j.foodcont.2008.08.014

Cited by 17 publications

(17 citation statements)

References 34 publications

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“…One SE strain isolated from a mayonnaise potato salad, responsible for a salmonellosis outbreak occurred in 2001, and previously characterized by Oliveira et al (2009) was compared with human isolates in PFGE typing. This strain presents the same predominant type among SE food isolates in RS during 1999 to 2002 (Oliveira et al 2009), and was sensitive to all antibiotics tested (Oliveira et al 2006).…”

Section: Bacterial Isolatesmentioning

confidence: 99%

“…In recent years, many DNA-based genotyping techniques have been utilized to assist in delineating epidemiological relationships between various isolates (Kostman, Edlind, LiPuma, & Stull 1992;Millemann, Lesage-Descauses, Lafont, & Chaslus-Dancla 1996;Tsen, Hu, Lin, Hung, & Wang 2000), being that PCR-ribotyping and PFGE have been applied in many studies because the former is considered not expensive and easy to perform, while the latter is currently the "gold standard" of the typing methods (Cerro, Soto, & Mendoza, 2003;Gatto et al, 2006;Oliveira et al, 2009;Soto, Guerra, Del Cerro, González-Hevia, & Mendoza, 2001;Swaminathan, Barret, Hunter, & Tauxe, 2001) .…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have demonstrated that SE was the predominant Salmonella serovar in foodborne outbreaks that occurred in the State of Rio Grande do Sul (RS), Southern Brazil (Geimba, Tondo, Oliveira, Canal, & Brandelli, 2004;Oliveira et al, 2006Oliveira et al, , 2009Vaz, Streck, Tramontina, Cardoso, & Canal, 2007). Further studies have demonstrated that a specific strain of Salmonella Enteritidis was isolated from foods involved with salmonellosis occurred in RS, a 10.7 million people State (Oliveira, Frazzon, Brandelli, & Tondo, 2007;Oliveira et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Further studies have demonstrated that a specific strain of Salmonella Enteritidis was isolated from foods involved with salmonellosis occurred in RS, a 10.7 million people State (Oliveira, Frazzon, Brandelli, & Tondo, 2007;Oliveira et al, 2009). The same authors reported that SE strains isolates from foods involved in foodborne outbreaks presented the same PFGE and PCR-ribotyping profiles, however there is no study characterizing and comparing the food strains with the microorganisms isolated from salmonellosis victims.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Salmonella Enteritidis isolated from human samples

Oliveira

Pasqualotto

Silva

et al. 2012

Food Research International

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Section: Bacterial Isolatesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of Salmonella Enteritidis isolated from human samples

Oliveira

Pasqualotto

Silva

et al. 2012

Food Research International

Self Cite

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“…No sul do Brasil a SE foi o sorotipo predominante em infecções alimentares em humanos (Vaz et al 2007, Oliveira et al 2009. Este patógeno pode infectar as aves por várias formas, nas quais as mais relacionadas à infecção do plantel são a água, alimento e ambiente contaminado (Flôres 2001).…”

Section: Introductionunclassified

Comportamento de células do sistema imune frente ao desafio com Salmonella Enteritidis em aves tratadas e não tratadas com ácidos orgânicos

et al. 2012

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A Salmonelose é uma importante zoonose, considerada a principal causa de infecções bacterianas, sendo associada ao consumo de produtos avícolas. Como alternativa de controle, ácidos orgânicos têm sido amplamente usados. No entanto, pouco se conhece sobre o estado imunológico de aves de produção, e uma avaliação deste status é necessária para proteger frente a enfermidades e para garantir à aplicação segura de agentes terapêuticos ou imunização profilática. Este trabalho teve como objetivo verificar o comportamento do sistema imunológico das aves previamente infectadas com Salmonella Enteritidis (SE) tratadas com um composto de ácidos orgânicos em diferentes concentrações administrado via água e ração comparando com as aves infectadas e não tratadas. Foram inoculados 120 frangos de corte com 1mL de SE, via oral, na concentração de 1,0 x 108 UFC/mL, no 1º e 2º dia de idade, divididos em seis tratamentos com duas repetições, utilizando 200, 400, 500 e 1000ppm do ácido orgânico. Aos 35 dias de vida das aves, foram coletados, de todos os grupos, alíquotas de sangue de 3mL em tubo contendo EDTA para a avaliação das células imunes através de citometria de fluxo. Foram analisadas as porcentagens circulantes de células CD4+, CD8β+, MHC I+, MHC II+, TCRVβ1+, TCRVβ2+ e CD28+. Para análise microbiológica foram coletadas tonsilas cecais destas aves. Observou-se com esse estudo que os ácidos orgânicos nas dosagens 1000ppm na água e 500ppm na ração durante, dois e sete dias respectivamente antes do abate, foram eficazes na redução da infecção por SE em frangos de corte, comprovadas pelo método microbiológico e demonstradas através do comportamento das células do sistema imune. No presente estudo as aves infectadas apresentaram uma proporção menor de células T auxiliares circulantes quando comparadas às aves infectadas, mas tratadas com o AO ou com o grupo não infectado. A mesma tendência pode ser observada para as células CD28+, TCRVβ1+ e MHC IIbright+, e, com menor resolução, para CD8β+.

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Bioconverted products of essential fatty acids as potential antimicrobial agents

et al. 2009

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This review deals with the recent findings on the microbial conversion of essential fatty acids (EFAs) through Pseudomonas aeruginosa PR3 NRRL-B-18602, and the antimicrobial properties of bioconverted EFAs, with particular emphasis on n-3 or n-6 fatty acids. The first section deals with the most recent and some background literature on which have been the latest developments with respect to bioconverted EFAs as potential antibacterial agents, in particular the inhibition of severe foodborne and food spoilage bacteria causing deleterious effects in food and human beings. The second section of the review deals with the inhibition of certain important plant pathogenic fungi through the bioconverted EFAs which cause drastic losses to food and agriculture industries. Also we have given emphasis through the literature on the importance of microbial bioconversion of EFAs along with their possible applications in various beneficial fields.

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Clonal relationship among Salmonella enterica serovar Enteritidis involved in foodborne outbreaks in Southern Brazil

Cited by 17 publications

References 34 publications

Characterization of Salmonella Enteritidis isolated from human samples

Characterization of Salmonella Enteritidis isolated from human samples

Comportamento de células do sistema imune frente ao desafio com Salmonella Enteritidis em aves tratadas e não tratadas com ácidos orgânicos

Bioconverted products of essential fatty acids as potential antimicrobial agents

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