<i>Salmonella</i>Infections

Gast, Richard K.; Porter, Robert E.

doi:10.1002/9781119371199.ch16

Cited by 61 publications

(55 citation statements)

References 327 publications

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“…A presença de elevado número de indivíduos com isolamento de salmonela em vísceras e ausência desta nas amostras de suabe poderia ser explicada pelo mecanismo de excreção desta bactéria que ocorre de modo intermitente [7]. Por outro lado, a presença de Salmonella sp.…”

Section: Discussionunclassified

“…Os resultados do presente trabalho demonstraram que a utilização da amostragem por suabe cloacal para a determinação de aves infectadas por salmonela é pouco sensível e o risco de falsos negativos é grande, já que aves clinicamente sadias podem ser portadoras desta bactéria nas vísceras. Além disso, em aves com infecção subclínica, pode haver a excreção da bactéria de forma intermitente ou em pequeno número [7]. Por esta razão, torna-se essencial determinar a conveniência do uso de suabes cloacais de espécies domésticas e silvestres para caracterização da epidemiologia das salmonelas nestas populações e determinação de possíveis reservatórios e fontes de infecção desta zoonose.…”

Section: Discussionunclassified

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Detecção de Salmonella sp. em emas (Rhea americana) através de suabes cloacais

Pereira

Canal

Schmidt

2018

Acta Scientiae. Vet.

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Section: Discussionunclassified

Detecção de Salmonella sp. em emas (Rhea americana) através de suabes cloacais

Pereira

Canal

Schmidt

2018

Acta Scientiae. Vet.

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“…However, most of them can multiply and remain in their digestive tract for some time, spreading in the farm environment. By contaminating poultry origin products to human consumption, they may be responsible for human outbreaks of food infection (Berchieri Jr. & Freitas Neto 2009, Andreatti Filho 2009, Gast 2013. The paratypical serotypes most commonly described in poultry environments, birds and their products, are the serotypes Enteritidis, Albany, Heidelberg, Mbandaka and Newport (Brasil 2008, Dutil et al 2010, FDA 2012, Robinson 2013, Cardoso et al 2015, Pandini et al 2015, PHAC 2017.…”

Section: Introductionmentioning

confidence: 99%

Quinolones resistance in Salmonella spp. isolated from broilers and chickens’ carcasses under federal inspection

et al. 2020

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We analyzed 77 Salmonella spp. strains, from which 20 were isolated from broilers (cloacal swabs) and 57 from chickens from slaughterhouses under federal inspection. The following serotypes were identified: Salmonella Saint Paul (29), Salmonella Heidelberg (27), Salmonella Anatum (9), Salmonella Cerro (5), Salmonella Senftenberg (5), Salmonella enterica (O: 4,5) (1) and Salmonella enterica (O: 9.12) (1). Fifteen strains (19.5%) were resistant to enrofloxacin, six (7.8%) to ciprofloxacin, and 26 (33.8%) to nalidixic acid in the Disk Diffusion Test. The fifteen enrofloxacin resistant strains were selected for the PCR to detect the genes gyrA, gyrB, parC, and parE, and genetic sequencing to identify mutations in these genes. Five strains (33.3%) had point mutations in the gyrA gene, and one (6.7%) presented a point mutation in the parC gene. None of the 15 strains had mutations in the gyrB and parE genes, and none had more than one mutation in the gyrA gene or the other genes. The presence of point mutations in the strains studied corroborates with the phenotypic resistance observed to nalidixic acid. However, it did not explain the resistance to fluoroquinolones found in the 15 strains. Other mechanisms may be related to the fluoroquinolones resistance, highlighting the need for additional mutation screening.

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“…Non-host-adapted Salmonellae usually colonize the digestive tract of turkeys asymptomatically [ 1 , 2 ]. Although in case of stress or at a very young age turkeys may develop severe clinical signs [ 1 ], the most important problem resulting from Salmonella infections lies in the transmission to humans.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of a Salmonella live vaccine for turkeys in different age groups and antibody response of vaccinated and non-vaccinated turkeys

Hesse¹,

Stamm²,

Weber³

et al. 2018

BMC Res Notes

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ObjectiveHuman Salmonellosis continues to be one of the most important foodborne zoonoses worldwide, although a decrease in case numbers has been noted in recent years. It is a foodborne zoonotic infection most commonly associated with the consumption of raw egg products but also with meat consumption including the consumption of poultry products. Turkey flocks in Europe have been reported to be affected by Salmonella infection, too. The present study examines the efficacy of a newly licensed Salmonella life vaccine in reducing infections with the Salmonella serovars Typhimurium and Enteritidis in turkeys. Turkeys were vaccinated the first day of life and at the age of 6 and 16 weeks. Groups of birds which had received different numbers of vaccinations were then submitted to challenge trials with either SE or ST.ResultsIn vaccinated birds Salmonella counts in liver and spleen and, less effectively, in caecum were reduced compared to unvaccinated birds. In several groups serum antibody-titers were statistically significantly higher in vaccinated turkeys than in non-vaccinated ones at day seven post infection, but only in one out of six groups at day 14 post infection.

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SalmonellaInfections

Cited by 61 publications

References 327 publications

Detecção de Salmonella sp. em emas (Rhea americana) através de suabes cloacais

Detecção de Salmonella sp. em emas (Rhea americana) através de suabes cloacais

Quinolones resistance in Salmonella spp. isolated from broilers and chickens’ carcasses under federal inspection

Efficacy of a Salmonella live vaccine for turkeys in different age groups and antibody response of vaccinated and non-vaccinated turkeys

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