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Long-term persistence of a multi-resistant methicillin-susceptible Staphylococcus aureus (MR-MSSA) clone at a university hospital in southeast Sweden, without further transmission within the region
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Hälsouniversitetet. Region Östergötland, Centrum för hälso- och vårdutveckling, Vårdhygien.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Hälsouniversitetet. Region Östergötland, Centrum för hälso- och vårdutveckling, Vårdhygien.
Ryhov Hospital, Sweden.
Statens Serum Institute, Denmark.
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2015 (engelsk)Inngår i: European Journal of Clinical Microbiology and Infectious Diseases, ISSN 0934-9723, E-ISSN 1435-4373, Vol. 34, nr 7, s. 1415-1422Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The objective of this study was to characterise isolates of methicillin-susceptible Staphylococcus aureus (MSSA) with resistance to clindamycin and/or tobramycin in southeast Sweden, including the previously described ECT-R clone (t002) found in Östergotland County, focusing on clonal relatedness, virulence determinants and existence of staphylococcal cassette chromosome (SCC) mec remnants. MSSA isolates with resistance to clindamycin and/or tobramycin were collected from the three county councils in southeast Sweden and investigated with spa typing, polymerase chain reaction (PCR) targeting the SCCmec right extremity junction (MREJ) and DNA microarray technology. The 98 isolates were divided into 40 spa types, and by microarray clustered in 17 multi-locus sequence typing (MLST) clonal complexes (MLST-CCs). All isolates with combined resistance to clindamycin and tobramycin (n = 12) from Östergotland County and two additional isolates (clindamycin-R) were designated as spa type t002, MREJ type ii and were clustered in CC5, together with a representative isolate of the ECT-R clone, indicating the clones persistence. These isolates also carried several genes encoding exotoxins, Q9XB68-dcs and qacC. Of the isolates in CC15, 83 % (25/30) were tobramycin-resistant and were designated spa type t084. Of these, 68 % (17/25) were isolated from new-borns in all three counties. The persistence of the ECT-R clone in Östergotland County, although not found in any other county in the region, carrying certain virulence factors that possibly enhance its survival in the hospital environment, highlights the fact that basic hygiene guidelines must be maintained even when MRSA prevalence is low.

sted, utgiver, år, opplag, sider
Springer Verlag (Germany) , 2015. Vol. 34, nr 7, s. 1415-1422
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-120139DOI: 10.1007/s10096-015-2366-1ISI: 000356527200017PubMedID: 25812999OAI: oai:DiVA.org:liu-120139DiVA, id: diva2:841624
Merknad

Funding Agencies|Ostergotland County Council, Sweden; Medical Research Council of Southeast Sweden (FORSS); Scandinavian Society for Antimicrobial Chemotherapy (SSAC)

Tilgjengelig fra: 2015-07-14 Laget: 2015-07-13 Sist oppdatert: 2017-12-04

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Lindqvist, MariaIsaksson, BarbroHällgren, Anita

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