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Isolation of a verotoxigenic Escherichia coli from the Tasmanian environment


Manandhar, R and Bettiol, SS and Bettelheim, KA and Goldsmid, JM, Isolation of a verotoxigenic Escherichia coli from the Tasmanian environment, Comparative Immunology, Microbiology and Infectious Diseases, 20, (3) pp. 271-279. ISSN 0147-9571 (1997) [Refereed Article]

DOI: doi:10.1016/S0147-9571(96)00033-1


Growing concerns on the emergence of verotoxin producing Escherichia coli (VTEC) in Australia have focused our attention on the possible sources of VTEC within the island state of Tasmania. An analysis of 156 food samples and 194 water samples obtained from various areas revealed evidence of eight possible sources. Six strains, with serotypes Ont:Hnt, O86:H-, O88:H-, O126:H21 and 0134:H-, were isolated from water samples. Two VTEC of serotypes Ont:H8, O81:H- were isolated from raw meat samples. The waterborne isolates produced verocytotoxin, VT1, while both foodborne isolates were strong producers of VT2. Three VTEC isolates produced haemolysins, only one produced enterohaemolysin (EntHly) and the remaining were reported with alpha-haemoiysin (alpha-Hly) activity. An important feature in the majority of isolates from water was their lack of ability to ferment lactose these isolates are routinely overlooked in public health laboratories.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Medical microbiology
Research Field:Medical bacteriology
Objective Division:Health
Objective Group:Other health
Objective Field:Other health not elsewhere classified
UTAS Author:Manandhar, R (Mrs Renu Manandhar)
UTAS Author:Bettiol, SS (Dr Silvana Bettiol)
UTAS Author:Goldsmid, JM (Professor John Goldsmid)
ID Code:10097
Year Published:1997
Web of Science® Times Cited:13
Deposited By:Pathology
Deposited On:1997-08-01
Last Modified:2011-08-11

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