Outbreak-associated Salmonella enterica Serotypes and Food Commodities, United States, 1998–2008
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TLDR
The diversity and predominance of food commodities implicated in outbreaks of salmonellosis during 1998–2008 were examined to clarify links between Salmonella serotypes and specific foods.Abstract:
Salmonella enterica infections are transmitted not only by animal-derived foods but also by vegetables, fruits, and other plant products. To clarify links between Salmonella serotypes and specific foods, we examined the diversity and predominance of food commodities implicated in outbreaks of salmonellosis during 1998-2008. More than 80% of outbreaks caused by serotypes Enteritidis, Heidelberg, and Hadar were attributed to eggs or poultry, whereas >50% of outbreaks caused by serotypes Javiana, Litchfield, Mbandaka, Muenchen, Poona, and Senftenberg were attributed to plant commodities. Serotypes Typhimurium and Newport were associated with a wide variety of food commodities. Knowledge about these associations can help guide outbreak investigations and control measures.read more
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Journal ArticleDOI
Investigation of a salmonellosis outbreak linked to French toast sandwich with the use of surveillance camera, Taiwan, 2018.
Yu-Neng Chueh,Tsai-Hsia Du,Chao-Jung Lee,Ying-Shu Liao,Chien-Shun Chiou,Jui-Chen Chang,Chiao-Wen Lin,Tsuey-Fong Lee,Chia-Ping Su,Chia-Ping Su +9 more
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TL;DR: In this article , the authors investigated the potential for the commercial protective culture Hafnia alvei B16 to provide enhanced protection against multi-drug resistant strains of S. enterica serovars Typhimurium and Newport.
Dissertation
Prevalence, antibiotic resistance and biofilm formation of Salmonella in raw chicken meats at selected slaughterhouses in Peninsular Malaysia
TL;DR: In this paper, Salmonella is one of the most common causes of foodborne diseases, and the authors used the White-Kauffmann-Le Minor (WKL) scheme to identify Salmonellar antisera from raw chicken.
Book ChapterDOI
Bacterial Quorum Sensing: Challenges and Prospects in Food Microbiology
TL;DR: The present chapter will provide an outlook on the role of QS in food fermentation and food spoilage, factors that affect the activity ofQS in various types of foods and inhibitors that can be used as biopreservatives, and future perspectives that necessitated to understand how microbial behaviour in foods affects QS.
Posted ContentDOI
Dynamic time warping assessment and sensitive high resolution melting analysis for subtyping Salmonella isolates from the Northern Thailand
Nuttachat Wisittipanit,Chaiwat Pulsrikarn,Saranya Wutthiosot,Sitthisak Pinmongkhonkul,Kritchai Poonchareon +4 more
Abstract: Background: Nontyphoidal Salmonella spp. transmitted through various routes are a major concern of food poisoning due to the consumption of contaminated food.
Objective: To establish a molecular-based protocol for simple and rapid subtyping of Salmonella isolates from various sources.
Materials and methods: Sensitive High-Resolution Melting-curve analysis (S-HRMa) and Dynamic Time Warping assessment (DTW) were applied for serotyping forty Salmonella spp. isolates from various origins and locations in seven provinces in the north of Thailand; the results were compared to those from conventional serotyping and ERIC- PCR.
Results: HRM serotyping of forty Salmonella spp. initially produced fourteen melting-curves with two predominant clusters: C1 (n=18) and C2 (n=9). Applying S-HRMa and serogroups generated twenty-five sensitive clusters. Conventional serotyping revealed that cluster C1 and C2 comprised of six different Salmonella serotypes with S. Weltevradent (n=14) as the predominant one. The S-HRMa also suggested the possible subtyping in some serotypes. In addition, DTW was performed to cluster those forty Salmonella spp. into twenty-eight clusters, assigned into different four clades corresponding to S-HRMa. The two clustering methods indicated that the S. Weltevreden was the predominant subtype (DTW4-S1, n=6). Three ERIC clusters at 92% similarity index also corresponded to the results of those two clustering methods. With important and related epidemiological data, S. Derby and S. Monophasic were suggested to be related to the slaughterhouse and swine. In this study, the ERIC cluster 10 comprising two Salmonella isolates of S. Weltevraden suggested the transmission route was likely to be farm-to-farm in the same province.
Conclusions: The DTW assessment and S-HRMa effectively increased the discrimatory power of clustering to the same level as that of ERIC - PCR and were a simple and rapid protocol to perform Salmonella subtyping for the epidemiological research.
References
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