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Molecular typing and drug resistance analysis of Yersinia enterocolitis in meat from Liaoning Province
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Ting-Ting SUN1, Wen-Li DIAO1, Xin-Zhi YANG2, Fei FEI3, Zhen-Yang ZHANG4, Si-Wei GUO4, Bao-Ying QI4, Yu-Xiao ZHOU4, Tian-Zhu LIANG4, Meng LI4, Xue LI1, *
Journal of Food Safety & Quality | 2026, 17(3) : 185 - 192
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Journal of Food Safety & Quality | 2026, 17(3): 185-192
• Special Topic: Food Safety Risk Monitoring and Assessment •
Molecular typing and drug resistance analysis of Yersinia enterocolitis in meat from Liaoning Province
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Ting-Ting SUN1, Wen-Li DIAO1, Xin-Zhi YANG2, Fei FEI3, Zhen-Yang ZHANG4, Si-Wei GUO4, Bao-Ying QI4, Yu-Xiao ZHOU4, Tian-Zhu LIANG4, Meng LI4, Xue LI1, *
Affiliations
  • 1.Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110172, China
  • 2.Dandong Center for Disease Control and Prevention, Dandong 118000, China
  • 3.Huludao Center for Disease Control and Prevention, Huludao 125000, China
  • 4.College of Life Sciences, Liaoning University, Shenyang 110036, China
doi: 10.19812/j.cnki.jfsq11-5956/ts.20250423001
Outline
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Objective

To analyse the etiological characteristics of Yersinia enterocolitis isolated from meat in Liaoning Province.

Methods

Pathogenic biological analysis, multilocus sequence typing (MLST) test and drug resistance detection analysis were conducted on Yersinia enterocolitica isolated from meat products.

Results

A total of 40 strains of Yersinia enterocolitica were detected from meat in 2024. Serotypes were O:8, O:3 and O:5, mainly O:8. The biological types were type 1A and type 3. Virulence gene detection could be divided into 4 types, the main type was type I carrying foxA. The 40 Yersinia enterocolitica isolates were divided into 10 groups of pluse field gel eletrophoresis (PFGE) dominant band types A-J. Group A had a higher proportion. MLST was divided into 26 types, among which there were 10 new types. STN16 and STN11 were located in the core and diverged to the periphery. Nalidixic acid resistance rate was the highest in drug sensitivity test, followed by streptomycin, ciprofloxacin and ampicillin resistance.

Conclusion

There are 3 serotypes of Yersinia enterocolitis isolated from meat in Liaoning Province in 2024, and the biotypes are very concentrated. The virulence genes are mainly type I, and the sequence type (ST) genotypes show diversified and divergent distribution and multiple antibiotic resistance mode. The supervision of pig, cow, chicken and other meat foods should be strengthened.

Yersinia enterocolitic  /  serotype  /  multilocus sequence typing
孙婷婷, 刁文丽, 杨新智, 费飞, 张震洋, 郭思薇, 齐宝莹, 周雨潇, 梁田竺, 李梦, 李雪. 辽宁省肉类食品中小肠结肠炎耶尔森菌分子分型及耐药分析. 食品安全质量检测学报, 2026 , 17 (3) : 185 -192 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20250423001
Ting-Ting SUN, Wen-Li DIAO, Xin-Zhi YANG, Fei FEI, Zhen-Yang ZHANG, Si-Wei GUO, Bao-Ying QI, Yu-Xiao ZHOU, Tian-Zhu LIANG, Meng LI, Xue LI. Molecular typing and drug resistance analysis of Yersinia enterocolitis in meat from Liaoning Province[J]. Journal of Food Safety & Quality, 2026 , 17 (3) : 185 -192 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20250423001
Appendix
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Year 2026 volume 17 Issue 3
8
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Article Info
doi: 10.19812/j.cnki.jfsq11-5956/ts.20250423001
  • Receive Date：2025-04-23
  • Online Date：2026-11-05
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History
  • Received：2025-04-23
Funding
Affiliations
    1.Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110172, China
    2.Dandong Center for Disease Control and Prevention, Dandong 118000, China
    3.Huludao Center for Disease Control and Prevention, Huludao 125000, China
    4.College of Life Sciences, Liaoning University, Shenyang 110036, China
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https://castjournals.cast.org.cn/joweb/spaq/EN/10.19812/j.cnki.jfsq11-5956/ts.20250423001
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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