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Sporadic occurrence of CMY-2-producing multidrug-resistant Escherichia coli of ST-complexes 38 and 448, and ST131 in Norway.
Naseer U, Haldorsen B, Simonsen GS, Sundsfjord A. Naseer U, et al. Clin Microbiol Infect. 2010 Feb;16(2):171-8. doi: 10.1111/j.1469-0691.2009.02861.x. Epub 2009 Jun 22. Clin Microbiol Infect. 2010. PMID: 19548922
Genetic methods for detection of antimicrobial resistance.
Sundsfjord A, Simonsen GS, Haldorsen BC, Haaheim H, Hjelmevoll SO, Littauer P, Dahl KH. Sundsfjord A, et al. APMIS. 2004 Nov-Dec;112(11-12):815-37. doi: 10.1111/j.1600-0463.2004.apm11211-1208.x. APMIS. 2004. PMID: 15638839 Review.
Characterization of a carbapenemase-producing clinical isolate of Bacteroides fragilis in Scandinavia: genetic analysis of a unique insertion sequence.
Walsh TR, Onken A, Haldorsen B, Toleman MA, Sundsfjord A. Walsh TR, et al. Scand J Infect Dis. 2005;37(9):676-9. doi: 10.1080/00365540510034482. Scand J Infect Dis. 2005. PMID: 16126569
Antibiotic susceptibility of Neisseria gonorrhoeae in Arkhangelsk, Russia.
Vorobieva V, Firsova N, Ababkova T, Leniv I, Haldorsen BC, Unemo M, Skogen V. Vorobieva V, et al. Sex Transm Infect. 2007 Apr;83(2):133-5. doi: 10.1136/sti.2006.021857. Epub 2006 Sep 13. Sex Transm Infect. 2007. PMID: 16971401 Free PMC article.
Effects of phenotype and genotype on methods for detection of extended-spectrum-beta-lactamase-producing clinical isolates of Escherichia coli and Klebsiella pneumoniae in Norway.
Tofteland S, Haldorsen B, Dahl KH, Simonsen GS, Steinbakk M, Walsh TR, Sundsfjord A; Norwegian ESBL Study Group. Tofteland S, et al. J Clin Microbiol. 2007 Jan;45(1):199-205. doi: 10.1128/JCM.01319-06. Epub 2006 Nov 1. J Clin Microbiol. 2007. PMID: 17079502 Free PMC article. Clinical Trial.
Nosocomial outbreak of CTX-M-15-producing E. coli in Norway.
Naseer U, Natås OB, Haldorsen BC, Bue B, Grundt H, Walsh TR, Sundsfjord A. Naseer U, et al. APMIS. 2007 Feb;115(2):120-6. doi: 10.1111/j.1600-0463.2007.apm_547.x. APMIS. 2007. PMID: 17295678
Neisseria gonorrhoeae population in Arkhangelsk, Russia: phenotypic and genotypic heterogeneity.
Unemo M, Vorobieva V, Firsova N, Ababkova T, Leniv I, Haldorsen BC, Fredlund H, Skogen V. Unemo M, et al. Clin Microbiol Infect. 2007 Sep;13(9):873-8. doi: 10.1111/j.1469-0691.2007.01764.x. Epub 2007 Jun 26. Clin Microbiol Infect. 2007. PMID: 17596201
The AmpC phenotype in Norwegian clinical isolates of Escherichia coli is associated with an acquired ISEcp1-like ampC element or hyperproduction of the endogenous AmpC.
Haldorsen B, Aasnaes B, Dahl KH, Hanssen AM, Simonsen GS, Walsh TR, Sundsfjord A, Lundblad EW. Haldorsen B, et al. J Antimicrob Chemother. 2008 Oct;62(4):694-702. doi: 10.1093/jac/dkn257. Epub 2008 Jun 26. J Antimicrob Chemother. 2008. PMID: 18583329
[Broad-spectrum beta-lactamases in Gram-negative bacteria].
Sundsfjord A, Simonsen GS, Haldorsen B, Lundblad EW, Samuelsen O. Sundsfjord A, et al. Tidsskr Nor Laegeforen. 2008 Dec 4;128(23):2741-5. Tidsskr Nor Laegeforen. 2008. PMID: 19079424 Review. Norwegian.
Clinical isolates of Staphylococcus aureus from the Arkhangelsk region, Russia: antimicrobial susceptibility, molecular epidemiology, and distribution of Panton-Valentine leukocidin genes.
Vorobieva V, Bazhukova T, Hanssen AM, Caugant DA, Semenova N, Haldorsen BC, Simonsen GS, Sundsfjord A. Vorobieva V, et al. APMIS. 2008 Oct;116(10):877-87. doi: 10.1111/j.1600-0463.2008.01092.x. APMIS. 2008. PMID: 19132981
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