Phenotypic characterization and putative virulence factors of human, animal and environmental isolates of Plesiomonas shigelloides
Language English Country United States Media print-electronic
Document type Journal Article
- MeSH
- Virulence Factors metabolism MeSH
- Gram-Negative Bacterial Infections microbiology veterinary MeSH
- Humans MeSH
- Environmental Microbiology * MeSH
- Plesiomonas genetics isolation & purification physiology MeSH
- Serotyping MeSH
- Bacterial Typing Techniques MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Virulence Factors MeSH
Plesiomonas shigelloides (a bacterium widely distributed in aquatic ecosystems causing both intestinal and extra-intestinal diseases) shows a host of putative virulence markers, such as hemolysins, cytotoxins, production of exoenzymes associated with pathogenicity, adhesive ability and vacuolation of cell lines in vitro. Technical difficulties in detecting some of these virulence factors together with scantiness of epidemiological information, due to the lack of routine analysis for P. shigelloides as etiological agent of gastroenteritis, lead to sporadic and occasional finding of these bacteria. All this casts doubt on the real virulence potential of P. shigelloides and fuels a debate about assignment of these bacteria to the list of human pathogens. Here we demonstrated the phenotypic diversity and the putative virulence markers by examining serotype biochemical and virulence properties of 60 strains of P. shigelloides isolated from human, animal and environmental samples in different countries, which showed the unpredictable occurrence of the above properties depending on various locations and diverse sources.
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Molecular evidence of Plesiomonas shigelloides as a possible zoonotic agent
