Abstract:
:Increasing frequencies of community-acquired methicillin-resistant Staphylococcus aureus (MRSA) strain isolation have been reported from many countries. The overall prevalence of MRSA in Norway is still very low. MRSA isolates (n = 67) detected between 1995 and 2003 in northern Norway were analyzed by pulsed-field gel electrophoresis, multilocus sequence typing, and staphylococcal cassette chromosome mec (SCCmec) typing. Sixty-seven isolates were associated with 13 different sequence types. Two successful MRSA clones predominated. Sequence type 8 (ST8) (40%) and ST80 (19%) containing SCCmec type IV were detected in hospitals and communities in different geographic regions during a 7-year period. In general, there was a low level of antimicrobial resistance. Only 26% of the isolates were multiresistant. International epidemic clones were detected. The frequent findings of SCCmec type IV (91%) along with heterogeneous genetic backgrounds suggest a horizontal spread of SCCmec type IV among staphylococcal strains in parallel with the clonal spread of successful MRSA strains.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Hanssen AM,Fossum A,Mikalsen J,Halvorsen DS,Bukholm G,Sollid JUdoi
10.1128/JCM.43.5.2118-2124.2005subject
Has Abstractpub_date
2005-05-01 00:00:00pages
2118-24issue
5eissn
0095-1137issn
1098-660Xpii
43/5/2118journal_volume
43pub_type
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