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Relationships between toxin gene content and genetic background in nasal carried isolates of Staphylococcus aureus from Asturias, Spain

AuthorsFueyo Mendoza, José María; Mendoza, M. Carmen; Álvarez González, Miguel Ángel ; Martín, M. Cruz
KeywordsStaphylococcus aureus
Issue Date15-Feb-2005
PublisherFederation of European Microbiological Societies
CitationFEMS Microbiology Letters 243: 447-454 (2005)
AbstractStaphylococcus aureus recovered from nasal carriers, producers and non-producers (43 isolates each) of classical pyrogenic toxin superantigens (PTSAgs), were screened for 17 additional PTSAg-genes by PCR. Percentages of 88.4 and 65.1 were positive for some new enterotoxin-gene, and 76.7 and 55.8 for enterotoxin-gene-clusters (egc-like), respectively. The 86 isolates belonged to 17 toxin-genotypes (all eta-, etb-, etd-, see- and sep-negative), and generated 40 SmaI-genomic profiles that in a dendrogram of similarity (S ≥ 0.7) clustered into nine lineages and 11 non-clustered branches. Correlations between classical PTSAgs and SmaI-lineages were established and egc-like groupings appeared dispersed in six lineages.
Publisher version (URL)http://dx.doi.org/10.1016/j.femsle.2005.01.006
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