Prevalence and antibacterial susceptibility of mef(A)-positive macrolide-resistant Streptococcus pneumoniae over 4 years (2000 to 2004) of the PROTEKT US Study. Academic Article uri icon

Overview

abstract

  • In the United States, approximately 30% of Streptococcus pneumoniae isolates are macrolide (erythromycin [ERY]) resistant (ERSP), most commonly due to expression of the mef(A) gene previously associated with lower-level ERY resistance (ERYr; MIC=1 to 4 microg/ml). The data from the PROTEKT US surveillance study were analyzed to evaluate the prevalence and antibacterial susceptibility of mef(A)-positive ERSP. In all, 26,634 isolates of S. pneumoniae were collected in the United States between 2000 and 2004 from centers common to all years. ERYr was stable at approximately 29% over the 4 years, but the proportion of ERSP isolates positive for mef(A) alone decreased (year 1 [2000 to 2001], 69.0%; year 4 [2003 to 2004], 60.7%), with the sharpest declines seen in isolates from patients from 0 to 2 years of age. Conversely, the proportion isolates positive for both erm(B) and mef(A) increased over the duration of the present study (year 1, 9.3%; year 4, 19.1%), a change that was again most marked in patients aged

publication date

  • November 8, 2006

Research

keywords

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Drug Resistance, Bacterial
  • Macrolides
  • Membrane Proteins
  • Pneumonia, Pneumococcal
  • Streptococcus pneumoniae

Identity

PubMed Central ID

  • PMC1829018

Scopus Document Identifier

  • 33847043888

Digital Object Identifier (DOI)

  • 10.1128/JCM.01653-06

PubMed ID

  • 17093012

Additional Document Info

volume

  • 45

issue

  • 2