Escherichia coli 0157:H7 colonization at the rectoanal junction of long-duration culture-positive cattle

Article Abstract:

The tissue and digesta from along the gastrointestinal tract (GIT) were cultured for the bacteria to examine histologically the existance of lymphoid character. The study result shows that among animals with documented histories or long-duration Escherichia coli 0157:H7 colonization, the bacteria were cultured only from the rectoanal junction mucosa and not from the gall bladder or other GIT locations.

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Survival of Escherichia coli O157:H7 ATCC 43895 in a model apple juice medium with different concentrations of proline and caffeic acid

Article Abstract:

Caffeic acid in apples may inhibit the growth of Shiga toxin-producing E. Coli O157:H7 (STEC). This could explain why many outbreaks of STEC from contaminated apple juice have occurred in October and November. The concentration of caffeic acid in apples decreases during ripening between July and October and reaches its lowest point when the apples mature in October.

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Persistent colonization of sheep by Escherichia coli O157:H7 and other E. coli pathotypes

Article Abstract:

Escherichia coli O157:H7 appears to persist longer in the body than other strains of E. coli, according to a study in sheep. E. coli O157:H7 produces a toxin similar to Shiga toxin, and can cause food-borne illness in humans.

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