沙门氏菌转移概率的表征。实验模型中猪肉和切肉刀之间的伤寒

IF 3 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Eduardo de Freitas Costa , Claudia Navarrete Rivas , Vanessa Bielefeld Leotti , Marisa Cardoso , Luis Gustavo Corbellini
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引用次数: 1

摘要

交叉污染是细菌在整个猪肉生产链中转移的重要事件。在巴西,沙门氏菌是猪肉行业最相关的危害,进一步了解其污染情况对于深入的风险评估至关重要。因此,我们旨在评估家庭厨房场景中沙门氏菌在刀和猪肉之间的转移概率,为将沙门氏菌转移纳入风险评估模型提供参数化。为了估计被污染的猪肉在切割过程中与刀片之间的鼠伤寒沙门氏菌传播率,进行了23项独立实验。利用贝叶斯推理来确定传递概率,捕捉传递概率实验中产生的不确定性。刀对猪肉的平均转移概率为0.03 [0.029;0.032] 95%可信区间(CrI)和0.0042(猪肉到刀)[0.0041;[0.0043] 95% CrI。对猪肉切割过程中沙门氏菌转移概率的概率估计为巴西猪肉生产行业消费者阶段的相关参数提供了见解,从而允许增强风险评估模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of the transfer probability of Salmonella ser. Typhimurium between pork and a cutting knife in an experimental model

Cross-contamination is an important event for bacterial transfer throughout the pork production chain. In Brazil, Salmonella sp. is the most relevant hazard in the pork industry, and further knowledge concerning its contamination is essential for in-depth risk assessments. Thus, we aimed to assess the transfer probability of Salmonella sp. between a knife and pork in a domestic kitchen scenario to provide parametrization for incorporating transfer of Salmonella sp. in risk assessment models. To estimate Salmonella Typhimuium transfer rates between contaminated pork and a knife blade during cutting, 23 independent experiments were performed. A Bayesian inference was utilized to determine the transfer probability, capturing the uncertainty generated in the transfer probability experiments. The mean transfer probability was 0.03 for knife to pork [0.029; 0.032] 95% credible interval (CrI) and 0.0042 for pork to knife [0.0041; 0.0043] 95% CrI. The probabilistic estimate of the transfer probability of Salmonella sp. during pork cutting gives insights on a relevant parameter for the consumer phase of the pork production industry in Brazil, allowing for enhanced risk assessment models.

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来源期刊
Microbial Risk Analysis
Microbial Risk Analysis Medicine-Microbiology (medical)
CiteScore
5.70
自引率
7.10%
发文量
28
审稿时长
52 days
期刊介绍: The journal Microbial Risk Analysis accepts articles dealing with the study of risk analysis applied to microbial hazards. Manuscripts should at least cover any of the components of risk assessment (risk characterization, exposure assessment, etc.), risk management and/or risk communication in any microbiology field (clinical, environmental, food, veterinary, etc.). This journal also accepts article dealing with predictive microbiology, quantitative microbial ecology, mathematical modeling, risk studies applied to microbial ecology, quantitative microbiology for epidemiological studies, statistical methods applied to microbiology, and laws and regulatory policies aimed at lessening the risk of microbial hazards. Work focusing on risk studies of viruses, parasites, microbial toxins, antimicrobial resistant organisms, genetically modified organisms (GMOs), and recombinant DNA products are also acceptable.
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