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Rapid emergence of a ceftazidime-resistant Burkholderia multivorans strain in a Cystic Fibrosis patient  Joshua R. Stokell, Raad Z. Gharaibeh, Todd R.

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Presentation on theme: "Rapid emergence of a ceftazidime-resistant Burkholderia multivorans strain in a Cystic Fibrosis patient  Joshua R. Stokell, Raad Z. Gharaibeh, Todd R."— Presentation transcript:

1 Rapid emergence of a ceftazidime-resistant Burkholderia multivorans strain in a Cystic Fibrosis patient  Joshua R. Stokell, Raad Z. Gharaibeh, Todd R. Steck  Journal of Cystic Fibrosis  Volume 12, Issue 6, Pages (December 2013) DOI: /j.jcf Copyright © 2013 European Cystic Fibrosis Society. Terms and Conditions

2 Fig. 1 Total bacterial abundance, Burkholderia-specific abundance, and percent of ceftazidime- resistant Burkholderia multivorans colonies measured from sputum samples collected during the 26-month sampling period. DNA isolated from sputum samples, as described in the addendum, was subjected to qPCR using Burkholderia cepacia complex-specific 16S rDNA primers12. The abundance values, expressed as copy number, represent the averages of three replicates. The dates of the study period are given. Journal of Cystic Fibrosis  , DOI: ( /j.jcf ) Copyright © 2013 European Cystic Fibrosis Society. Terms and Conditions

3 Fig. 2 Effect of antibiotics on abundance of B. multivorans in sputum samples before and after treatment. Antibiotics given prior to the acquisition of the ceftazidime-resistant strain (A) caused a significant decrease (P=.01 by Student’s t-test) in abundance during treatment for an exacerbation. Antibiotics given to treat an exacerbation that occurred after the acquisition of the ceftazidime-resistant strain (B) showed no significant change (P=.63 by Student’s t-test) in abundance during treatment. Journal of Cystic Fibrosis  , DOI: ( /j.jcf ) Copyright © 2013 European Cystic Fibrosis Society. Terms and Conditions


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