Risk factors for Listeria monocytogenes contamination in French laying hens and broiler flocks

Aury, Kristell; Bouquin, Sophie Le; Toquin, Marie-Thérèse; Huneau‐Salaün, A.; Nôtre, Yolene Le; Allain, V.; Petetin, Isabelle; Fravalo, Philippe; Chemaly, Marianne

doi:10.1016/j.prevetmed.2010.11.017

Cited by 26 publications

(25 citation statements)

References 50 publications

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“…The rates of contamination of poultry by L. monocytogenes recovered in our study are close or above the incidences reported by some other groups (Cetinkaya et al 2004;Vitas and Garcia-Jalon 2004;Osaili et al 2011;Fallah et al 2012). L. monocytogenes can cause the contamination of poultry during the slaughtering and processing phases (Aury et al 2011) or at the farm level (Fallah et al 2012). The prevalence of L. monocytogenes in vegetables was 13.6% in the present study.…”

Section: Discussionsupporting

confidence: 89%

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Prevalence, Serotype Identification by Multiplex Polymerase Chain Reaction and Antimicrobial Resistance Patterns of Listeria Monocytogenes Isolated from Retail Foods

Çetinkaya

Muş

Yibar

et al. 2014

Journal of Food Safety

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In the present study, a total of 512 food samples composed of raw milk, dairy products, meat/meat products, chicken meat, seafood and raw vegetables were analyzed for the presence of Listeria monocytogenes. The results of the standard identification methods showed that 20 (3.9%) of the analyzed samples were found to harbor this pathogen. Further, 8.4% (13/155) of chicken meats, 0.9% (1/105) of meat/meat products and 13.6% (6/44) of fresh vegetables were contaminated with L. monocytogenes. Interestingly, only 18 of these isolates gave expected band size when they were subjected to molecular confirmation by polymerase chain reaction (PCR). Multiplex PCR serotyping of the strains revealed that 66.6% (12/18) of which belonged to serotype 1/2a (or 3a), 5.6% (1/18) to serotype 1/2b (or 3b, 7), 5.6% (1/18) to serotype 1/2c (or 3c) and 11.1% (2/18) to serotype 4b (or 4d, 4e). Two strains could not be serotyped by multiplex PCR. The strains were also evaluated by disk diffusion assay for their susceptibility to 15 commonly used antimicrobials. Antimicrobial resistance was most frequently observed for clindamycin (94.4%), followed by streptomycin and kanamycin (88.9%); penicillin (72.2%), tetracycline and gentamicin (66.7%); quinopristin/dalfopristin and erythromycin (61.1). Interestingly, 13 strains were resistant to more than five antibiotics. All strains were susceptible to linezolid, teicoplanin and vancomycin. Practical Applications Listeria monocytogenes is one of the most important foodborne pathogens responsible for several outbreaks and cases of listeriosis in human. This study focused on the prevalence of L. monocytogenes in different raw and ready‐to‐eat foodstuffs, and serotype distribution among the isolates. Antibiotic resistance profiles of the isolates were also reported. Information and relief provided to consumers could help elaborate public health and food safety.

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Section: Discussionsupporting

confidence: 89%

“…L. monocytogenes can cause the contamination of poultry during the slaughtering and processing phases (Aury et al . ) or at the farm level (Fallah et al . ).…”

Section: Discussionmentioning

confidence: 99%

Prevalence, Serotype Identification by Multiplex Polymerase Chain Reaction and Antimicrobial Resistance Patterns of Listeria Monocytogenes Isolated from Retail Foods

Çetinkaya

Muş

Yibar

et al. 2014

Journal of Food Safety

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“…generally ( 54 ) or L. monocytogenes specifically ( 60 , 64 ). Broiler flock contamination rates for L. monocytogenes can range from 3 to 32% ( 47 , 55 , 56 , 58 ), with similar contamination rates for layer hens and turkey flocks ( 55 – 57 ). The number of positive samples within positive flocks is generally low, with most of the positive flocks (32 to 55.6%) represented by only one positive sample ( 55 – 57 ).…”

Section: Listeria Spp Within the Grow-out Farm Environmentmentioning

confidence: 99%

Listeria Occurrence in Poultry Flocks: Detection and Potential Implications

et al. 2017

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Foodborne pathogens such as Salmonella, Campylobacter, Escherichia coli, and Listeria are a major concern within the food industry due to their pathogenic potential to cause infection. Of these, Listeria monocytogenes, possesses a high mortality rate (approximately 20%) and is considered one of the most dangerous foodborne pathogens. Although the usual reservoirs for Listeria transmission have been extensively studied, little is known about the relationship between Listeria and live poultry production. Sporadic and isolated cases of listeriosis have been attributed to poultry production and Listeria spp. have been isolated from all stages of poultry production and processing. Farm studies suggest that live birds may be an important vector and contributor to contamination of the processing environment and transmission of Listeria to consumers. Therefore, the purpose of this review is to highlight the occurrence, incidence, and potential systemic interactions of Listeria spp. with poultry.

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“…Our study is part of a broader task undertaken by the European project ''PoultryFlorGut'' (acronym for the project ''Control of the Intestinal Flora in Poultry for Ensuring the Products Safety for Human Consumers''), the aim of which is to collect and update data relating to the presence of certain pathogens (L. monocytogenes and Salmonella) in poultry productions, including turkey, in European countries. This particular study is a continuation of studies performed on the prevalence and risk factors of L. monocytogenes in laying hens and broiler flocks in France (4,5).…”

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confidence: 95%

Listeria monocytogenes Contamination in French Breeding and Fattening Turkey Flocks

Aury-Hainry

Bouquin

Labbé

et al. 2011

Journal of Food Protection

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This study aimed to collect data and create a database related to Listeria monocytogenes contamination in breeding and fattening turkey flocks. Seventy-five breeding turkey flocks and 86 fattening turkey flocks were sampled. Three hundred seventy-five and 428 samples were analyzed in breeding and fattening turkey flocks, respectively. L. monocytogenes was detected in 9 of 75 breeding flocks, leading to an estimated prevalence of 12% (95% confidence interval, 4.6-19.4). In fattening turkeys, the prevalence of L. monocytogenes-positive flocks was 9.3% (95% confidence interval, 3.1-15.5). The serotyping of L. monocytogenes strains highlighted the dominance of serovar 1/2a in breeding as well as in fattening turkeys. The relationship between rearing practices and L. monocytogenes status in turkey flocks was studied by using multiple correspondence analyses and then a hierarchical classification. Results were separated into two classes and revealed profiles that were associated with the presence or the absence of L. monocytogenes. This study highlighted the need to implement strict sanitary measures to reduce the risk of L. monocytogenes contamination in turkey production.

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Risk factors for Listeria monocytogenes contamination in French laying hens and broiler flocks

Cited by 26 publications

References 50 publications

Prevalence, Serotype Identification by Multiplex Polymerase Chain Reaction and Antimicrobial Resistance Patterns of Listeria Monocytogenes Isolated from Retail Foods

Prevalence, Serotype Identification by Multiplex Polymerase Chain Reaction and Antimicrobial Resistance Patterns of Listeria Monocytogenes Isolated from Retail Foods

Listeria Occurrence in Poultry Flocks: Detection and Potential Implications

Listeria monocytogenes Contamination in French Breeding and Fattening Turkey Flocks

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