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Characterization of Yersinia enterocolitica Biotype 1A Strains Isolated from Swine Slaughterhouses and Markets.
MedLine Citation:
PMID:  23476146     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
is an important foodborne pathogen that causes illness in humans and animals. is also the most heterogeneous species of the genus and is divided into distinct serotypes and over six biotypes. biotype 1A strains are classically considered as nonpathogenic; however, some biotype 1A isolates have been considered as causative of gastrointestinal disease, yielding symptoms indistinguishable from those produced by pathogenic biotypes. Even after decades of isolation of clinical strains, the pathogenic mechanisms of these isolates are still not fully understood. In the present study, 122 biotype 1A strains isolated from swine slaughterhouses and meat markets in Sao Paulo, Brazil, were characterized according to the presence of the virulence genes , F, and A. A total of 94 strains were positive to at least one virulence gene (77.05%), and 67 were positive to all of them (54.92%). Twenty-two strains were submitted to PFGE genotyping resulting in 22 distinct pulsotypes, varying from 50% to 84% of genetic similarity. Any clustering tendency among pulsotypes related to origin, isolation site, or even virulence profile was not observed. The present study reports an important contamination of the environment in swine slaughterhouses, meat markets, and pork, by potentially virulent biotype 1A.
Authors:
Renata Paixão; Luisa Zanolli Moreno; Débora Dirani Sena de Gobbi; Daniele Cristine Raimundo; Ernesto Hofer; Maria Helena Matté; Thais Sebastiana Porfida Ferreira; Vasco Tulio de Moura Gomes; Barbara Leticia Pereira Costa; Andrea Micke Moreno
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Publication Detail:
Type:  Journal Article     Date:  2013-02-17
Journal Detail:
Title:  TheScientificWorldJournal     Volume:  2013     ISSN:  1537-744X     ISO Abbreviation:  ScientificWorldJournal     Publication Date:  2013  
Date Detail:
Created Date:  2013-03-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101131163     Medline TA:  ScientificWorldJournal     Country:  England    
Other Details:
Languages:  eng     Pagination:  769097     Citation Subset:  IM    
Affiliation:
Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Avenida Prof. Dr. Orlando Marques de Paiva 87, Butanta, 05508-270 São Paulo, SP, Brazil ; Faculdade de Medicina Veterinária, Faculdades Metropolitanas Unidas (FMU), Rua Ministro Nelson Hungria 541, 05690-050 São Paulo, SP, Brazil.
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