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Diagn Microbiol Infect Dis. 2013 Jun;76(2):214-6. doi: 10.1016/j.diagmicrobio.2013.02.006. Epub 2013 Mar 18.

Persistence of Klebsiella pneumoniae clones with OXA-48 or NDM carbapenemases causing bacteraemias in a Riyadh hospital.

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Pharmaceutics and Microbiology Department, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.


We characterized nine carbapenem-resistant Klebsiella pneumoniae collected over 9 months during 2011 in Riyadh; 8 from Hospital A and 1 from Hospital B. Variable number tandem repeat (VNTR) defined three strains at Hospital A, each with 2 or 3 representatives recovered from separate patients over periods of 6-24 weeks; 2 strains had OXA-48 and 1 had NDM. The single isolate from Hospital B also had OXA-48 but was distinct by VNTR from the Hospital A strains. Two strains with OXA-48 were colistin resistant; the third included a colistin-resistant representative from a colistin-treated patient.

[Indexed for MEDLINE]

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