Outbreak of enterocolitic salmonellosis on a wild pig farm

Ecco, Roselene; Guedes, Roberto Maurício Carvalho; Túry, E.; Santos, H. L.; Perecmanis, Simone

doi:10.1136/vr.158.7.242

Cited by 7 publications

(4 citation statements)

References 9 publications

(6 reference statements)

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“…isolations were never associated with presence of macroscopic lesions during necropsy. This is different from observations of farmed wild boars where some serotypes of Salmonella such as S. Choleraesuis and S. Saintpaul are known to cause multifocal to diffuse fibrinonecrotic typhlocolitis [12,13]. …”

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confidence: 73%

Salmonella serotypes in wild boars (Sus scrofa) hunted in northern Italy

et al. 2013

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BackgroundSalmonella species (spp.) are zoonotic enteric bacteria able to infect humans, livestock and wildlife.However, little is known about the prevalence and the presence of the different serovars in wildlife. Considering the wide distribution of wild boars and the feeding behaviour (omnivorous scavengers), wild boars may be a good indicator for environmental presence of Salmonella spp. The aims of this study were to determine the presence of Salmonella spp. in hunted wild boars and to determine the serotype the isolated strains.FindingsOver three hunting seasons, the intestinal contents of 1,313 boars hunted in northern Italy were sampled and cultured. Salmonella spp. were isolated from 326 boars (24.82%). Thirty different serovars belonging to three different S. enterica spp. were found. Twenty-one serovars of S. enterica subsp. Enterica were found including the human pathogens S. Typhimurium and S. Enteritidis. In addition, nine serovars belonging to S.enterica subsp. diarizonae and S. enterica subsp. houtenae were detected.ConclusionsConsidering the widespread occurrence of wild boars in Europe, the epidemiological role of this species in relation to salmonellosis might be relevant and should be further investigated. Wild boars may act as healthy carriers of a wide range of Salmonella serotypes.

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confidence: 73%

Salmonella serotypes in wild boars (Sus scrofa) hunted in northern Italy

et al. 2013

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“…The higher mortality observed in F1 could be due to the fact that at ages of 2-3 months the piglets show the lowest level of antibodies since birth, being much more susceptible to infections (Tizard, 2009). (Ecco, Guedes, Tury, Santos, & Perecmanis, 2006). In the same way, some common porcine pathogens cause especially high mortalities in this species, e.g.,…”

Section: Discussionmentioning

confidence: 93%

Outbreaks of antimicrobial resistantSalmonellaCholeraesuis in wild boars piglets from central‐western Spain

Molino

Risco²,

Blanco³

et al. 2018

Transbound Emerg Dis

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Salmonella enterica serovar Choleraesuis is the aetiological agent of swine paratyphoid being a highly invasive zoonotic pathogen. Wild boar natural populations are experiencing a demographical expansion as well as some farms are breeding this species to release for hunting with management sometimes identical to that of domestic pigs, including supplementation, grouping, and antibiotic treatments. This situation increases the chance of contact between wild boars and livestock, and potentially induces stress, with different sanitary consequences. The present work aims to describe the clinical features of recent outbreaks caused by S. Choleraesuis in wild boar from central-western Spain, as well as the antimicrobial resistance and phylogenetic relationships of isolates involved. 28 strains of S. Choleraesuis were isolated from 28 different wild boars belonging to 10 different game states located in central western Spain and submitted to the Clinical Veterinary Hospital (CVH) of the University of Extremadura. Samples were taken from different organs and cultured according to the ISO 6579:2002 procedure. Suspicious colonies were identified by PCR and antimicrobial resistance was evaluated by disc diffusion susceptibility test and the presence of the main resistance genes as well as 18 plasmid replicons frequently found among the Enterobacteriaceae was verified by PCR. Pulsed field gel electrophoresis was applied to determine the genetic relationship between isolates. The outbreaks under study were characterized by high mortality (35%-84%) and a septicaemic presentation. S. Choleraesuis was isolated from all the wild boars analysed, and 26 of the 28 isolates presented resistance to at least one antibiotic. The predominant resistances found were against sulphonamide, streptomycin, tetracycline, and doxicicline and sul1, strA-strB, and tetA were the most prevalent resistance genes among isolates. 10 strains carried FIIA, FIB+H/1 or FIIA+H/1 plasmids. PFGE classified the isolates into four different profiles, grouped into two clusters. This results show that prevention against S. Choleraesuis must be considered in the sanitary programs of the wild boar breeders.

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“…Although cases of salmonellosis in farmed ungulates or park deer are reported worldwide, they seem to occur sporadically (Ecco, Guedes, Tury, Santos, & Perecmanis, 2006;Foreyt, Besser, & Lonning, 2001;French, Rodriguez-Palacios, & LeJeune, 2010;Perez et al, 1999;Sato, Kobayashi, Ichikawa, Kuwamoto, & Koyama, 2000). With respect to game birds, birds from pheasantries have higher prevalences of Salmonella than pheasants in the wild (Coburn, Snary, & Wooldridge, 2003).…”

Section: General Considerations About the Risk For Zoonoses And In Pmentioning

confidence: 96%