Prevalence of pilus-encoding islets among acute otitis media Streptococcus pneumoniae isolates from Israel

M. Moschioni, G. De Angelis, S. Melchiorre, V. Masignani, E. Leibovitz, M. A. Barocchi, R. Dagan

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We evaluated the distribution of the two known Streptococcus pneumoniae pilus encoding islets (PI-1 and PI-2) among a panel of 113 acute otitis media clinical isolates from Israel. PI-1 was present in 30.1% (n = 34) of the isolates tested, and PI-2 was present in 7% (n = 8). In addition, we found that: (i) the PI positive isolates, 50% of which belong to the international clones Spain9V-3 (ST156) and Taiwan19F-14 (ST236), correlate with the genotype (as determined by multilocus sequence typing) but not with the serotype; (ii) PI-2 was not present in the absence of Pl-1; and (iii) the frequency of PI-1 was higher among antibiotic-resistant isolates.

Original languageEnglish
Pages (from-to)1501-1504
Number of pages4
JournalClinical Microbiology and Infection
Volume16
Issue number9
DOIs
StatePublished - 1 Jan 2010

Keywords

  • Acute otitis media
  • Antibiotic resistance
  • Genotype
  • Pilus-encoding islet
  • Streptococcus pneumoniae

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases

Fingerprint

Dive into the research topics of 'Prevalence of pilus-encoding islets among acute otitis media Streptococcus pneumoniae isolates from Israel'. Together they form a unique fingerprint.

Cite this