Salmonella in pork retail outlets and dissemination of its pulsotypes through pig production chain in Chiang Mai and surrounding areas, Thailand

Patchanee, Prapas; Tansiricharoenkul, Kankanok; Buawiratlert, Tunyamai; Wiratsudakul, Anuwat; Angchokchatchawal, Kittipat; Yamsakul, Panuwat; Yano, Terdsak; Boonkhot, Phacharaporn; Rojanasatien, S.; Tadee, Pakpoom

doi:10.1016/j.prevetmed.2016.06.013

Cited by 35 publications

(48 citation statements)

References 30 publications

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“…In this study, Salmonella isolation rate from pigs (8.2%) was much lower than that (71.8%) in Jiangsu province, China (Cai et al, 2016), and the most common serotype in pigs was Salmonella Rissen, which in consistent with the result from the retail pork products in Thailand (Prapas et al, 2016). However, this finding was different from that reported in EU in which Salmonella Typhimurium was the most common serotype (European Food Safety Authority, 2014).…”

Section: Discussionsupporting

confidence: 81%

Serotype Distribution, Antimicrobial Resistance, and Class 1 Integrons Profiles of Salmonella from Animals in Slaughterhouses in Shandong Province, China

Zhao

Chang

et al. 2017

Front. Microbiol.

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The current study aimed to analyze the prevalence and characterization of Salmonella enterica isolated from animals in slaughterhouses before slaughter. A total of 143 non-duplicate Salmonella were recovered from 1,000 fresh fecal swabs collected from four major pig slaughterhouses (49/600, 8.2%) and four major chicken slaughterhouses (94/400, 23.5%) between March and July 2016. Among Salmonella isolates from pigs, the predominant serovars were Salmonella Rissen (28/49, 57.1%) and Typhimurium (14/49, 28.6%), and high antimicrobial resistance rates were observed for tetracycline (44/49, 89.8%) and ampicillin (16/49, 32.7%). Class 1 integrons were detected in 10.2% (5/49) of these isolates and all contained gene cassettes aadA2 (0.65 kb). Two β-lactamase genes were detected among these isolates, and most of these isolates carried blaTEM-1 (46/49), followed by blaOXA-1(4/49). Seven STs (MLST/ST, multilocus sequence typing) were detected in these isolates, and the predominant type was ST469 (19.6%). Among Salmonella isolates from chickens, the predominant serovars were Salmonella Indiana (67/94, 71.3%) and Enteritidis (23/94, 24.5%), and high antimicrobial resistance rates were observed for nalidixic acid (89/94, 94.7%), ampicillin (88/94, 93.6%) and tetracycline (81/94, 86.2%). Class 1 integrons were detected in 23 isolates (23/94, 24.5%), which contained empty integrons (0.15 kb, n = 6) or gene cassettes drfA17-aadA5 (1.7 kb, n = 6), aadA2 (1.2 kb, n = 5), drfA16-blaPSE-1-aadA2-ereA2 (1.6 kb, n = 5) or drfA1-aadA1 (1.4 kb, n = 1). Three β-lactamase genes were detected, and all 94 isolates carried blaTEM-1, followed by blaCTX-M-55 (n = 19) and blaSPE−1 (n = 3). Five STs were found in these isolates, and the predominant type was ST17 (71.3%). Our findings indicated that Salmonella was widespread in animals at slaughter and may be transmitted from animal to fork.

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Section: Discussionsupporting

confidence: 81%

Serotype Distribution, Antimicrobial Resistance, and Class 1 Integrons Profiles of Salmonella from Animals in Slaughterhouses in Shandong Province, China

Zhao

Chang

et al. 2017

Front. Microbiol.

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“…In the eastern part of Thailand, the Salmonella contamination in chicken was 23% (Trongjit et al, ). The prevalence of Salmonella contamination in pork in Northern Thailand (Chiang Mai and Lamphun) was reported to be 29% (95% CI: 18%–40%) (Padungtod & Kaneene, ), especially in the Chiang Mai old city area where the rate was up to 40% in 2016 (Patchanee et al, ). The prevalence of Salmonella contamination in pork around Chiang Mai and Lamphun provinces has been clearly observed to have remained unchanged over the past 10 years.…”

Section: Discussionmentioning

confidence: 99%

“…(85.71%, 95% CI: 78.23–93.20). The high prevalence of Salmonella contamination strongly suggests shortcomings in hygiene practices in retail stores, for example, storage temperature, packaging and/or holding time, all of which are important factors in Salmonella multiplication (Patchanee et al, ; Soltan Dallal, Sharifi Yazdi, Mirzaei, & Kalantar, ). Together, these factors increase the opportunity for Salmonella growth in fresh markets, resulting in a higher prevalence of Salmonella contamination than in other retail outlets (Murugadas et al, ; Nhung et al, ; Wong, Nicol, Cook, & MacDiarmid, ).…”

Section: Discussionmentioning

confidence: 99%

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Quantification and rep‐PCR characterization of Salmonella spp. in retail meats and hospital patients in Northern Thailand

Prasertsee

Chokesajjawatee

Santiyanont

et al. 2019

Zoonoses and Public Health

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Human salmonellosis is a major public health problem worldwide. Infections can pass to humans by contact with contaminated substances in the food chain. This study aimed to determine the prevalence and contamination levels of Salmonella isolated from pork, chicken and beef sold in different types of retail stores in Chiang Mai and Lamphun provinces and to investigate the genetic relatedness among Salmonella isolates in food chains in that area. A total of 360 meat samples from supermarkets, mini‐grocery stores and fresh markets were obtained. Salmonella Rissen and S. Weltevreden were found in all meat sample types and in human cases. The overall prevalence of Salmonella in the chicken, pork and beef samples was 34.17%, 32.50% and 3.33%, respectively. Quantitatively, Salmonella contamination was highest in pork (1.24 log10MPN/g), followed by chicken (1.08 log10MPN/g), and beef (0.75 log10MPN/g). The highest frequency of Salmonella contamination was found at the fresh markets (85.71%), whereas the highest quantity of contamination level was from mini‐grocery stores (1.27 log10MPN/g). The rep‐PCR analysis results revealed that some of the Salmonella from meat samples and human cases were identical clones.

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“…In the studies by Tadee et al [14] and Patchanee et al [15], one hundred and twenty strains of Salmonella enterica were identified. Of those, only seven strains were included in serotype Weltevreden.…”

Section: Introductionmentioning

confidence: 99%

High Resolution Whole Genome Multilocus Sequence Typing (wgMLST) Schemes for Salmonella enterica Weltevreden Epidemiologic Investigations

Tadee¹,

Tadee²,

Hitchings³

et al. 2018

Microbiology and Biotechnology Letters

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Salmonella in pork retail outlets and dissemination of its pulsotypes through pig production chain in Chiang Mai and surrounding areas, Thailand

Cited by 35 publications

References 30 publications

Serotype Distribution, Antimicrobial Resistance, and Class 1 Integrons Profiles of Salmonella from Animals in Slaughterhouses in Shandong Province, China

Serotype Distribution, Antimicrobial Resistance, and Class 1 Integrons Profiles of Salmonella from Animals in Slaughterhouses in Shandong Province, China

Quantification and rep‐PCR characterization of Salmonella spp. in retail meats and hospital patients in Northern Thailand

High Resolution Whole Genome Multilocus Sequence Typing (wgMLST) Schemes for Salmonella enterica Weltevreden Epidemiologic Investigations

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