Journal of Pure and Applied MicrobiologyVol. 4 No. 2

Isolation of Sorbitol non Fermenting Escherichia coli from Beef Samples in Coimbatore and its Antibiogram

Lali Growther¹ and Niren Andrew S.²

¹Department of Microbiology, Hindusthan College of Arts and Science, Behind NavaIndia, Coimbatore - 641 028, India. ²Department of Microbiology, Madras Christian College, East Tambaram, Coimbatore - 600 059, India.

Received on 18 February 2010 and accepted on 26 March 2010



E.coli is a normal intestinal flora in animals and human beings. Diarrhoea causing E.coli is classified as Enterotoxigenic E.coli, Enteroinvasive E.coli, Enteropathogenic E.coli, and Enterohaemorrhagic E.coli (EHEC). EHEC is an emerging pathogen causing haemorrhagic colitis and Haemolytic Uremic Syndrome.The most common EHEC is E.coli O157:H7.In this study, E.coli is isolated from 100 faecal samples of cattle in Coimbatore. Among the E.coli isolates, 32 were sorbitol non fermentors. These sorbitol non fermentors were subjected to drug susceptibility to 12 different antibiotics. Multiple drug resistance was observed.

Keywords : Drug resistance, Sorbitol non fermenting E.coli, E.coli biovars.