Ocorrência de Salmonella sp em suínos de terminação no Rio Grande do Sul

Weiss, Lúcia H. N.; Nonig, Ricardo B.; Cardoso, Marisa Ribeiro de Itapema; Costa, Marisa da

doi:10.1590/s0100-736x2002000300003

Cited by 9 publications

(5 citation statements)

References 14 publications

(19 reference statements)

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“…Similar studies in Brazil have also found a prevalence of resistance by Salmonella isolated from pigs to tetracycline (96.5%) and nalidixic acid (95.5%) (Castagna et al 2001), as well as multidrug resistant strains particularly to sulfonamides (97.8%) and streptomycin (82.6%) (Weiss et al 2002). The high resistance rates of our isolates for ciprofloxacin are similar to those found in pigs from Spain (97.1%) (EFSA 2010).…”

Section: Discussionsupporting

confidence: 85%

Frequency, serotyping and antimicrobial resistance pattern of Salmonella from feces and lymph nodes of pigs

et al. 2016

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Resumo.-[Isolamento, sorotipagem e padrões de resistência a antimicrobianos de Salmonella em fezes e linfonodos de suínos.] Nas últimas décadas, o aumento de cepas circulante de Salmonella concomitantemente a resistência microbiana tem despertado a preocupação dos órgãos de Saúde Pública. Deste modo, o objetivo do presente trabalho foi pesquisar a presença de Salmonella a partir de fezes (n=50), linfonodos mediastinos (n=50), mesentéricos (n=50) e submandibular (n=50) oriundos de um abatedouro suíno. As cepas isoladas foram sorotipadas e testadas quanto a resistência antimicrobiana. A presença de Salmonella isolada foram em 10% (20/200) do total de amostras, sendo 20% dos linfonodos submandibulares, 18% dos linfonodos mesentéricos e 2% das fezes. Os sorotipos encontrados foram S. Typhimurium (55%), S. enterica subsp. enterica 4,5,12: i: -(35%), S. Brandenburg (5%) e S. Salmonellosis is a foodborne disease caused by bacteria of the genus Salmonella, being pigs and pork-products potentially important for its occurrence. In recent decades, some serovars of Salmonella have shown increase of resistance to conventional antimicrobials used in human and animal therapy, with serious risks for public health. The aim of this study was to evaluate feces (n=50), mediastinal (n=50), mesenteric (n=50) and mandibular (n=50) lymph nodes obtained from slaughter houses for Salmonella spp. Positive samples were serotyped and subjected to an in vitro antimicrobial susceptibility test, including the extended-spectrum beta-lactamase (ESBL) production. Salmonella species were identified in 10% (20/200) of total samples. From these, 20% (10/50) were identified in the submandibular lymph nodes, 18% (9/50) in the mesenteric lymph nodes, 2% (1/50) in feces and 0% (0/50) in the mediastinal lymph nodes. The serotypes found were Salonella Typhimurium (55%), S. enterica subsp. enterica 4,5,12: i: -(35%), S. Brandenburg and S. Derby with 5% (5% each). All strains showed resistance to at least one antimicrobial; 90% were resistant to four or more antimicrobials, and 15% were multidrug-resistant. Resistance to ciprofloxacin, tetracycline and nalidixic acid was particularly prevalent amongst the tested serovars. Here, we highlighted the impact of pigs in the epidemiological chain of salmonellosis in domestic animals and humans, as well as the high antimicrobial resistance rates of Salmonella strains, reinforcing the necessity for responsible use of antimicrobials for animals as an emergent One Health issue, and to keep these drugs for human therapy approaches.

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Section: Discussionsupporting

confidence: 85%

Frequency, serotyping and antimicrobial resistance pattern of Salmonella from feces and lymph nodes of pigs

et al. 2016

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“…infection is of major concern to the swine industry for several important reasons: (1) contaminated pork distributed in retail stores can present very significant risk to public health, and (2) septicemic salmonellosis, due to host-adapted Salmonella cholerasuis, or severe enteritis, due to nonhost-adapted Salmonella Typhimurium (Lanza, 1998;Weiss et al, 2002;Griffith et al, 2006), causes significant mortality in piglet and grower pigs, resulting in important economic loss.…”

mentioning

confidence: 99%

Salmonella entericaSubclinical Infection: Bacteriological, Serological, Pulsed-Field Gel Electrophoresis, and Antimicrobial Resistance Profiles—Longitudinal Study in a Three-Site Farrow-to-Finish Farm

Vigo

Cappuccio

Piñeyro

et al. 2009

Foodborne Pathogens and Disease

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The aim of this surveillance was to study both Salmonella spp. shedding patterns and the time course of serological response in farrow-to-finish reared pigs from a subclinically infected farm. Antimicrobial resistance profile, molecular subtyping, and the relationship among the isolates were determined by pulsed-field gel electrophoresis (PFGE). A farrow-to-finish farm of 6000 sows, with a history of Salmonella Typhimurium septicemia, was selected. A longitudinal bacteriological and serological study was conducted in 25 sows before farrowing (M=S1) and in 50 offspring at 21 (M=S2), 35 (M=S3), 65 (M=S4), 86 (M=S5), 128 (M=S6), and 165 (M=S7) days of age. Serum antibodies were tested using Herdcheck Ò Swine Salmonella antibody test kit (Idexx Laboratories, ME). Bacteria were isolated from pooled fecal samples. Suspected isolates were confirmed by conventional biochemical assays, and those identified as Salmonella spp. were serotyped. A variation between seropositive percentages and positive fecal samples was observed. Serologically positive pigs decreased from S1 to S4, and subsequently increased from S4 to S7. The percentages of fecal positive culture increased from M1 to M3, and then declined in M4, increased in M5, and were negative in M6 and M7.In the study three serovars, Salmonella 3,10:e,h:-, Salmonella Muenster, and Salmonella Bovismorbificans, were identified with low pathogenicity for swine. Three multidrug resistance strains (one belonged to Salmonella 3,10:e,h:-and two belonged to Salmonella Muenster) were found. PFGE results showed three different but closely related patterns among the 13 isolates of Salmonella Bovismorbificans, and two patterns for the three Salmonella Muenster and Salmonella 3,10:e,h:-isolates.This longitudinal study established critical points of Salmonella spp. infection in the farm and the production stages, where appropriate control measures must be taken. PFGE showed clonal relationships in each serovar. Antibiotic resistance profiles should be periodically included due to public health concerns.

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“…Dessa forma, a epidemiologia da salmonelose em suínos deve ser observada como dois problemas distintos: a salmonelose como infecção clínica e a contaminação por Salmonella em carcaças suínas e seus produtos (WEISS et al, 2002). Segundo o CODEX Alimentarius, a presença de qualquer sorovar de Salmonella em alimentos é motivo para classificá-los como impróprios para consumo, tanto no mercado nacional como no internacional, o que tem levado a indústria de produtos de origem animal a implementar estratégias de controle com a finalidade de garantir a segurança dos alimentos.…”

Section: Discussionunclassified

ISOLAMENTO DE Salmonella NA TECNOLOGIA DE ABATE DE SUÍNOS COMO SUBSÍDIO PARA O SISTEMA APPCC

Colla

Bohrz

Webber

et al. 2015

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A Salmonella pode estar presente em carcaças suínas ao final da tecnologia de abate, sendo que não existem procedimentos de inspeção especificamente direcionados para o controle desta bactéria, consideradas um risco potencial para a saúde pública. O objetivo do trabalho foi verificar a presença de Salmonella em carcaças suínas e caracterizar os pontos críticos de controle (PCCs) da tecnologia de abate como subsídio ao sistema APPCC. Foram realizados swabs de carcaças após a escaldagem/depilação, antes da evisceração, após evisceração e serragem da carcaça e após 24 horas de refrigeração, gerando 120 amostras (30 carcaças de cinco lotes). Isolou-se Salmonella em 53,3% dos PCs analisados, sendo 40% antes da eviscerarão e 30% após a escaldagem/depilação e evisceração/serragem. Nas carcaças resfriadas por 24 horas não foi isolada Salmonella. Os sorovares identificados foram Typhimurium (96,7 %) e Panama (3,22%). O isolamento de Salmonella reforça a necessidade de programas de monitoria da bactéria, desde as granjas até os abatedouros, enquanto o não isolamento nas carcaças resfriadas indica a importância da lavagem final e adequação da cadeia do frio, o que minimiza a contaminação pela intensificação das medidas de higiene e controle de pontos críticos para subsidiar o sistema APPCC.

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Ocorrência de Salmonella sp em suínos de terminação no Rio Grande do Sul

Cited by 9 publications

References 14 publications

Frequency, serotyping and antimicrobial resistance pattern of Salmonella from feces and lymph nodes of pigs

Frequency, serotyping and antimicrobial resistance pattern of Salmonella from feces and lymph nodes of pigs

Salmonella entericaSubclinical Infection: Bacteriological, Serological, Pulsed-Field Gel Electrophoresis, and Antimicrobial Resistance Profiles—Longitudinal Study in a Three-Site Farrow-to-Finish Farm

ISOLAMENTO DE Salmonella NA TECNOLOGIA DE ABATE DE SUÍNOS COMO SUBSÍDIO PARA O SISTEMA APPCC

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