AIMS: There are several biological characteristics that differ between Escherichia coli O157:H7, a dangerous food-borne pathogen, and the other serotypes of E. coli. METHODS AND RESULTS: The optimal growth temperatures (T(opt)) were determined for 32 E. coli strains, whether each strain belonged to the O157 serotype or not. The mean values of T(opt) for the O157 and non-O157 groups were 40.2 and 41.2 degrees C, respectively. SIGNIFICANCE AND IMPACT OF THE STUDY: This difference is statistically significant (P=0.0002) but has no biological implication.
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Gonthier et al. (2001) studied this question.
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