Abstract:
:Staphylococcus aureus is a leading cause of bloodstream infections (BSI) and diseases that may be caused by hematogenous spread. The staphylococcal adhesin, for which the association with the infections emerging as a complication of septicemia has been well documented, is a bone sialoprotein-binding protein (Bbp). The aim of the study was to assess the prevalence of a bbp gene in S. aureus bloodstream isolates associated with BSI and to investigate to what degree the distribution of this gene is linked to the clonality of the population. Spa typing, used in order to explore the genetic population structure of the isolates, yielded 29 types. Six spa clusters and seven singletons were identified. The most frequent was spa clonal complex CC021 associated with MLST CC30 (38%). The bbp gene was found in 47% of isolates. Almost all isolates (95%) clustered in spa clonal complex CC021 were positive for this gene. All isolates carrying the bbp gene were sensitive to methicillin, and if clustered in the spa CC021, belonged to agr group III. Our study shows that Bbp is not strictly associated with BSI. However, one may conclude that for clonally related S. aureus strains most commonly causing BSI, the risk of Bbp-mediated complications of septicemia is expected to be higher than for other strains.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Wiśniewska K,Piórkowska A,Kasprzyk J,Bronk M,Świeć Kdoi
10.1007/s12223-014-0321-7subject
Has Abstractpub_date
2014-11-01 00:00:00pages
465-71issue
6eissn
0015-5632issn
1874-9356journal_volume
59pub_type
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