Leaching of Escherichia coli O157:H7 in diverse soils under various agricultural management practices

Article Abstract:

The leaching of E. coli O157:H7 from fertilizer made from animal manure into soil depends on the tillage practice, soil type, and amount of rainfall. Soluble nitrogen in the soil can enhance bacterial transport.

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Quantitative detection of Escherichia coli O157 in surface waters by using immunomagnetic electrochemiluminescence

Article Abstract:

Researchers describe a technique for identifying E. coli O157 in water using immunomagnetic beads with a monoclonal anti-O157:H7 IgG combined with a polyclonal anti-O157:H7 IgG with an electrochemiluminescent label attached. This strain of E. coli is usually transmitted in contaminated meat, but it can also contaminate water.

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tir- and stx-positive Escherichia coli in stream waters in a metropolitan area

Article Abstract:

Weekly surveys of stream water was conducted in the metropolitan Baltimore area for the prevalence of potentially pathogenic Escherichia coli strains through the use of PCR for the tir and stx1 and stx2 genes are presented. The results reveal that pathogenic Escherichia coli are continually deposited into a variety of stream habitats and suggest that this organism might be a permanent member of the gastrointestinal microflora of humans and animals in the metropolitan Baltimore area.

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