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Persistence of animal and human glycopeptide-resistant enterococci on two Norwegian poultry farms formerly exposed to avoparcin is associated with a widespread plasmid-mediated vanA element within a polyclonal enterococcus faecium population.
Johnsen PJ, Østerhus JI, Sletvold H, Sørum M, Kruse H, Nielsen K, Simonsen GS, Sundsfjord A. Johnsen PJ, et al. Among authors: sundsfjord a. Appl Environ Microbiol. 2005 Jan;71(1):159-68. doi: 10.1128/AEM.71.1.159-168.2005. Appl Environ Microbiol. 2005. PMID: 15640183 Free PMC article.
Transfer of plasmid and chromosomal glycopeptide resistance determinants occurs more readily in the digestive tract of mice than in vitro and exconjugants can persist stably in vivo in the absence of glycopeptide selection.
Dahl KH, Mater DD, Flores MJ, Johnsen PJ, Midtvedt T, Corthier G, Sundsfjord A. Dahl KH, et al. Among authors: sundsfjord a. J Antimicrob Chemother. 2007 Mar;59(3):478-86. doi: 10.1093/jac/dkl530. Epub 2007 Feb 5. J Antimicrob Chemother. 2007. PMID: 17283034
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. Among authors: sundsfjord a. APMIS. 2007 Feb;115(2):120-6. doi: 10.1111/j.1600-0463.2007.apm_547.x. APMIS. 2007. PMID: 17295678
Factors affecting the reversal of antimicrobial-drug resistance.
Johnsen PJ, Townsend JP, Bøhn T, Simonsen GS, Sundsfjord A, Nielsen KM. Johnsen PJ, et al. Among authors: sundsfjord a. Lancet Infect Dis. 2009 Jun;9(6):357-64. doi: 10.1016/S1473-3099(09)70105-7. Lancet Infect Dis. 2009. PMID: 19467475 Review.
179 results