emm typing, antibiotic resistance and PFGE analysis of Streptococcus pyogenes in Lebanon

J Med Microbiol. 2011 Jan;60(Pt 1):98-101. doi: 10.1099/jmm.0.023317-0. Epub 2010 Sep 23.

Abstract

One hundred and three Streptococcus pyogenes isolates recovered mainly from streptococcal throat infections in Lebanon were characterized by emm and PFGE typing. Thirty-three emm types and subtypes were detected among the isolates. PFGE was more discriminatory as a typing method. The prevalent emm types were emm1 (12.6 %), emm22 (8.7 %), emm28 (7.7 %), emm88 (7.7 %) and emm4 (6.8 %) and all isolates were susceptible to vancomycin and penicillin G. Ten per cent of the isolates were resistant to erythromycin and 3 % were resistant to erythromycin and clindamycin, showing the macrolide-lincosamide-streptogramin B phenotype. The emm sequences and PFGE pattern database that were generated in this study will serve as a basis for information for long-term evolutionary and epidemiological studies of local S. pyogenes recovered not only in Lebanon, but also in neighbouring countries.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Antigens, Bacterial / genetics
  • Bacterial Outer Membrane Proteins / genetics
  • Bacterial Typing Techniques*
  • Carrier Proteins / genetics
  • DNA Fingerprinting
  • Databases, Genetic
  • Drug Resistance, Bacterial*
  • Electrophoresis, Gel, Pulsed-Field
  • Humans
  • Lebanon / epidemiology
  • Microbial Sensitivity Tests
  • Molecular Epidemiology / methods
  • Pharynx / microbiology
  • Streptococcal Infections / epidemiology*
  • Streptococcal Infections / microbiology*
  • Streptococcus pyogenes / classification*
  • Streptococcus pyogenes / drug effects*
  • Streptococcus pyogenes / genetics
  • Streptococcus pyogenes / isolation & purification

Substances

  • Anti-Bacterial Agents
  • Antigens, Bacterial
  • Bacterial Outer Membrane Proteins
  • Carrier Proteins
  • streptococcal M protein