Clarithromycin Resistance Mechanisms of Epidemic β-Lactamase-Nonproducing Ampicillin-Resistant Haemophilus influenzae Strains in Japan.

Abstract:

:The aim of this study was to clarify the clarithromycin resistance mechanisms of β-lactamase-nonproducing ampicillin-resistant Haemophilus influenzae strains. In all clarithromycin-resistant strains, the transcript level of acrB was significantly elevated, and these strains had a frameshift mutation in acrR Introduction of the acrR mutation into H. influenzae Rd generated a clarithromycin-resistant transformant with the same MIC as the donor strain. Our results indicate that the acrR mutation confers clarithromycin resistance by the increasing the transcription of acrB.

authors

Seyama S,Wajima T,Nakaminami H,Noguchi N

doi

10.1128/AAC.00163-16

subject

Has Abstract

pub_date

2016-04-22 00:00:00

pages

3207-10

issue

5

eissn

0066-4804

issn

1098-6596

pii

AAC.00163-16

journal_volume

60

pub_type

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