Genetics & Genomics
Natural atypical nonhemolytic Listeria seeligeri isolates have been discovered
Published in Medical Letter on the CDC and FDA, June 7th, 2006
According to their report, "We found seven Listeria isolates, initially identified as isolates with the Xyl+ Rha- biotype of Listeria welshimeri by phenotypic tests, which exhibited discrepant genotypic properties in a well-validated Listeria species identification oligonucleotide microarray."
"The microarray gives results of these seven isolates being atypical hly-negative L. seeligeri isolates, not L. welshimeri isolates," said Dmitriy Volokhov and colleagues at the U.S. Food and Drug...
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