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Escherichia Coli
Study results from Y.K. Burgos and colleagues update understanding of Escherichia coli
April 21st, 2009
"The 157-kb conjugative plasmid pEO5 encoding alpha-haemolysin in strains of human enteropathogenic Escherichia coli (EPEC) O26 was investigated for its relationship with EHEC-haemolysin-encoding plasmids of enterohaemorrhagic E. coli (EHEC) O26 and O157 strains. Plasmid pEO5 was found to be compatible with EHEC-virulence plasmids and did not hybridize in Southern blots with plasmid pO157 from the EHEC O157:H7 strain EDL933, indicating that both plasmids were unrelated," scientists in Berlin, Germany report. "A 9227-bp stretch of pEO5 DNA encompassing the entire alpha-hlyCABD operon was sequenced and compared for similarity to plasmid and chromosomally inherited...
Source: TB & Outbreaks Week (2009-04-21)
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