Abstract
The multiresistance gene cfr was found in two porcine Escherichia coli isolates, one harboring it on the conjugative 33,885-bp plasmid pFSEC-01, the other harboring it in the chromosomal DNA. Sequence analysis of pFSEC-01 revealed that a 6,769-bp fragment containing the cfr gene bracketed by two IS26 elements was inserted into a plasmid closely related to pEA3 from the plant pathogen Erwinia amylovora, suggesting that pFSEC-01 may be transferred between different bacterial genera of both animal and plant origin.
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