Property | Value |
Name | A comparative study of virulence factors in enterococci from clinical and nonclinical sources |
Description | Original article:- Asha Peter1*, Jyothis Mathew2 & Shini Zacharia3
1Lecturer, University College of Medical Education, M.G.University, Kottayam.686008,India. 2Ph.D in Microbiology, Professor, School of BioSciences, M.G.University, Kottayam, India 3Mphil in Microbiology, Assistant professor, University college of Medical Education, Kottayam,India.
Abstract:- Background: Mode of transmission of infections with these microorganisms has been attributed to the patient's own flora and other nosocomial routes. Hence the factors helping the enterococci to cause infection are of great value. Aim: This study was done to compare the virulence properties of isolates from clinical sources with those from non clinical sources. Methods: The presence of different virulence factors like hemolysin, lipase, caseinase, gelatinase, lyzosome resistance, DNAse, serum resistance, slime production and biofilm formation in different enterococci strains were screened by different standard methods. Results: Among the different enterococcal isolates tested, clinical isolates exhibited a higher incidence of virulence factors than nonclinical isolates. Faecal strains presented with the lowest incidence of virulence factors as compared with clinical and water strains. E.faecalis strains possessed most of the virulence factors than E.faecium. Conclusion: High incidence of virulence properties in clinical samples may be reason behind their high prevalence in clinical settings. Nevertheless the presence of these virulence factors in nonclinical isolates points to their infection potential.
Key words:- Virulence factors, Enterococcal pathogenicity, slime in enterococci, biofilm in enterococci.
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Copyright © 2013 Asha Peter. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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