Evidence of verocytotoxigenic Escherichia coli (VTEC) in livestock of Tamil Nadu-an explorative study


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Authors

  • R Gopinathan Vellore Institute of Technology, Vellore, Tamil Nadu
  • Gagndeep Kang Vellore Institute of Technology, Vellore, Tamil Nadu
  • Asokan G V Vellore Institute of Technology, Vellore, Tamil Nadu
  • Arunagirinathan N Vellore Institute of Technology, Vellore, Tamil Nadu
  • George Vasanthana Vellore Institute of Technology, Vellore, Tamil Nadu

Keywords:

Escherichia coli, HUS. Haemorrhagic colitis, Haemorrhagic ureamic syndrome, Verocytotoxigenic E.coli, VTEC

Abstract

There is a paucity of data about the prevalence, burden of disease and complications associated with verocytotoxigenic Escherichia coli (VTEC) in animals in India. Cattle and other livestock harbour VTEC strains associated with haemorrhagic colitis (HC) and haemorrhagic ureamic syndrome (HUS). Therefore this explorative study analysed 115 livestock including healthy and diarrhoic animals for the excretion of VTEC. Isolates (12) belonging to non-sorbitol fermenting Escherichia coli (10.4%) were obtained out of 115 samples screened to tellurite cefixime-sorbitol MacConkey agar (TC-SMAC) that produced CPE on verocell monolayer. Culture filtrate of 4 out of these 12 E. coli isolates extracted after treatment with 10% (wlv) polymyxin B showed neutralization with antishigatoxin-1 suggesting them to be true VTEC strains. This study marks the first evidence of the isolation of VTEC from livestock in Tamil Nadu and underscores the need for large-scale epidemiological and bacteriological investigation to discern the mode of transmission and prevalent serotypes of VTEC in India.

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Submitted

2011-08-02

Published

2005-11-05

Issue

Vol. 75 No. 11 (2005)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Animal Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

Gopinathan, R., Kang, G., V, A. G., N, A., & Vasanthana, G. (2005). Evidence of verocytotoxigenic Escherichia coli (VTEC) in livestock of Tamil Nadu-an explorative study. The Indian Journal of Animal Sciences, 75(11). https://epubs.icar.org.in/index.php/IJAnS/article/view/8238