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Year : 2005  |  Volume : 23  |  Issue : 3  |  Page : 204-

Escherichia fergusonii: An emerging pathogen in South Orissa

A Mahapatra, S Mahapatra, A Mahapatra 
 Department of Microbiology, MKCG Medical College, Berhampur 760 004, Orissa, India

Correspondence Address:
A Mahapatra
Department of Microbiology, MKCG Medical College, Berhampur 760 004, Orissa

How to cite this article:
Mahapatra A, Mahapatra S, Mahapatra A. Escherichia fergusonii: An emerging pathogen in South Orissa.Indian J Med Microbiol 2005;23:204-204

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Mahapatra A, Mahapatra S, Mahapatra A. Escherichia fergusonii: An emerging pathogen in South Orissa. Indian J Med Microbiol [serial online] 2005 [cited 2020 Nov 27 ];23:204-204
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Dear Editor,

Escherchia fergusonii and Enterobacter taylorae have recently been recognised as emerging pathogens. Formerly known as Enteric Group 10 and 19, these are new species in the family Enterobacteriaceae.[1],[2] By DNA hybridization, strains of E.fergusonii were found to be 90-97% related to the type strain (holotype) ATCC 35469 and most closely related to E. coli . E. fergusonii can be differentiated from E. coli by being sorbitol and lactose negative but adonitol positive.[3] In the present study, 104 E. fergusonii strains were isolated from 600 clinical specimens processed at the Department of Microbiology MKCG medical college, during a period of one year (April 2003 to March 2004). Majority were isolated from wound infection (63) followed by urine (37), pleural fluid (3) and blood (1). E. fergusonii, E. hermannii and E. vulneris have been isolated from clinical specimens and from the intestinal contents of humans and warm blooded animals. They are opportunistic pathogens and have occasionally been associated with wound infections in humans.[4] Isolation of E. fergusonii has also been reported from four different sites (gall bladder fluid, blood, faeces and superficial wound of abdomen) in a patient with pancreatic carcinoma and cholangiosepsis. Biochemical, antimicrobial susceptibility and susceptibility to polyvalent phage 0-1 and r RNA restriction analysis suggested that the four strains were of clonal origin, which ultimately proved a pathogenic potential in humans.[5] Studies have reported E. fergusonii associated with bacteraemia, wound infection and UTI to be susceptible to Chloramphenicol, gentamicin and resistant to ampicillin.[1] In the present study, 83% of the isolates were susceptible to amikacin followed by cephoperazone sulbactam combination (79%) and gatifloxacin (73%). Susceptibility to cefotaxime, ciprofloxacin and ampicillin was 53 and 33% respectively. Gentamicin and choramphenicol were proved to the least effective drugs against E. fergusonii . To the best of our knowledge E. fergusonii has not been reported earlier from this part of the world.


1Farmer JJ 3rd, Fanning GR, Davis BR, O' Hara CM, Riddle C, Hickman-Brenner FW et al . Escherichia fergusonii and Enterobacter taylorae, two new species of Enterobacteriaceae isolated from clinical specimens. J Clin Microbiol 1985; 21 :77-81.
2Freney J, Gavini F, Ploton C, Leclerc H, Fleurtte J. Isolation of E.fergusonii from a patient with septicemia in France. Eur J Clin Microbiol Infect Dis 1987; 6 :78.
3The Enterobacteriaceae - In color Atlas and Textbook of diagnostic Microbiology, 5th edn. Koneman EW, Allen SD, Janda WM, Schreckenberger PC, Winn Jr. WC Editors. Philadelphia: JB Lippincott Company; 1997. p. 171-252.
4Altwegg M, Bockemuch1 J. Escherichia and Shigella In Topley and Wilson's Microbiology and Microbiol Infections 9th edn. Balows A, Duerden BI Editors. London:Arnold; 1988. p. 935-67.
5Funkle G, Hany A Altwegg M. Isolation of E.fergusonii from four different sites in a patient with pancreatic carcinoma and cholongiosepsis. J Clin Microbiol 1993; 31 :2201-03.