Abstract:Background: Escherichia coli is usually a commensal of the digestive system, particularly intestine of humans and animals. However, there are many reports indicating that some strains are known to cause serious problems causing various infections among children worldwide, particularly in the developing countries. Escherichia coli strains can be classified into four phylogenetic groups: A, B1, B2 and D. The commensal strains are usually placed into the phylogenetic groups; A and B1 and the extraintestinal patho… Show more
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