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Pegoraro K, Sereno MJ, Viana C, Martins BTF, Yamatogi RS, Nero LA, Bersot LDS. Pathogenic potential and antibiotic resistance of Yersinia enterocolitica, a foodborne pathogen limited to swine tonsils in a pork production chain from Southern Brazil. Braz J Microbiol 2021; 52:2335-2342. [PMID: 34406639 PMCID: PMC8578270 DOI: 10.1007/s42770-021-00591-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022] Open
Abstract
In this study, we aimed to characterize the distribution of Yersinia enterocolitica in a pork production chain in Brazil, as well as the virulence profile and antibiotic resistance of the obtained isolates. Samples from 10 pig lots obtained from finishing farms (water, feed, and barn floors, n = 30), slaughterhouse (lairage floors, carcasses at four processing steps, tonsils, and mesenteric lymph nodes, n = 610), and processing (end cuts, processing environment, n = 160) were obtained in Paraná state, Brazil, and subjected to Y. enterocolitica detection by ISO 10,273. The obtained isolates were identified based on biochemical and molecular features (16 s rRNA, inv, bioserotyping) and subjected to PCR assays to detect virulence (ail, ystA, ystB, virF, myfA, fepA, fepD, fes, tccC, ymoA, hreP, and sat) and multidrug resistance-related genes (emrD, yfhD, and marC). Also, isolates were subjected to disk diffusion test to characterize their resistance against 17 antibiotics from 11 classes and to pulsed field gel electrophoresis (PFGE) after XbaI macro-restriction. Y. enterocolitica was detected in a single sample (tonsil), and the obtained three isolates were characterized as serotype O:3, harboring ail, ystA, virF, myfA, tccC, ymoA, hreP, emrD, yfhD, and marC, and resistant to all tested antibiotics. The three isolates presented identical macro-restriction profiles by PFGE, also identical to isolates obtained from Minas Gerais, other Brazilian state; one selected isolate was identified as biotype 4. Despite the low occurrence of Y. enterocolitica in the studied pork production, the virulence potential and the antibiotic resistance profiles of the isolates demonstrated their pathogenic potential, and the macro-restriction profiles indicate strains descending from a common subtype in the pork production chain of two Brazilian States.
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Affiliation(s)
- Kadigia Pegoraro
- LACOMA, Laboratório de Inspeção e Controle de Qualidade de Água e Alimentos, Universidade Federal do Paraná, Departamento de Ciências Veterinárias, PR, 85950 000, Palotina, Brazil
| | - Mallu Jagnow Sereno
- LACOMA, Laboratório de Inspeção e Controle de Qualidade de Água e Alimentos, Universidade Federal do Paraná, Departamento de Ciências Veterinárias, PR, 85950 000, Palotina, Brazil
- InsPOA, Laboratório de Inspeção de Produtos de Origem Animal, Universidade Federal de Viçosa, Departamento de Veterinária, Viçosa, MG, 36570 900, Brazil
| | - Cibeli Viana
- LACOMA, Laboratório de Inspeção e Controle de Qualidade de Água e Alimentos, Universidade Federal do Paraná, Departamento de Ciências Veterinárias, PR, 85950 000, Palotina, Brazil
- InsPOA, Laboratório de Inspeção de Produtos de Origem Animal, Universidade Federal de Viçosa, Departamento de Veterinária, Viçosa, MG, 36570 900, Brazil
| | - Bruna Torres Furtado Martins
- InsPOA, Laboratório de Inspeção de Produtos de Origem Animal, Universidade Federal de Viçosa, Departamento de Veterinária, Viçosa, MG, 36570 900, Brazil
| | - Ricardo Seiti Yamatogi
- InsPOA, Laboratório de Inspeção de Produtos de Origem Animal, Universidade Federal de Viçosa, Departamento de Veterinária, Viçosa, MG, 36570 900, Brazil
| | - Luís Augusto Nero
- InsPOA, Laboratório de Inspeção de Produtos de Origem Animal, Universidade Federal de Viçosa, Departamento de Veterinária, Viçosa, MG, 36570 900, Brazil.
| | - Luciano Dos Santos Bersot
- LACOMA, Laboratório de Inspeção e Controle de Qualidade de Água e Alimentos, Universidade Federal do Paraná, Departamento de Ciências Veterinárias, PR, 85950 000, Palotina, Brazil.
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Meat Safety from Farm to Slaughter—Risk-Based Control of Yersinia enterocolitica and Toxoplasma gondii. Processes (Basel) 2021. [DOI: 10.3390/pr9050815] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The implementation of the traditional meat safety control system has significantly contributed to increasing food safety and public health protection. However, several biological hazards have emerged in meat production, requiring a comprehensive approach to their control, as traditional methods of meat inspection at the slaughterhouse are not able to detect them. While national control programs exist for the most important meat-related hazards, similar data are still lacking for certain neglected threats, such as Yersinia enterocolitica or Toxoplasma gondii. The obstacle in controlling these hazards in the meat chain is their presence in latently infected, asymptomatic animals. Their effective control can only be achieved through systematic preventive measures, surveillance or monitoring, and antimicrobial interventions on farms and in slaughterhouses. To establish such a system, it is important to collect all relevant data on hazard-related epidemiological indicators from the meat chain, which should provide relevant guidance for interventions at the harvest and post-harvest stage. The proposed approach is expected to improve the existing system and provide many opportunities to improve food safety and public health.
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