Staphylococcal cassette chromosome mec characterization of methicillin-resistant Staphylococcus aureus strains isolated at the military hospital of Constantine/Algeria

Pathol Biol (Paris). 2013 Dec;61(6):280-1. doi: 10.1016/j.patbio.2013.05.006. Epub 2013 Jul 20.

Abstract

Staphylococcal cassette chromosome mec is a genetic mobile element that carries the gene mecA mediating the methicillin resistance in staphylococci. The aim of this study is to type the Staphylococcal cassette chromosome mec (SCCmec) in 64 non-redundant methicillin-resistant Staphylococcus aureus (MRSA) strains recovered at the military hospital of Constantine (Algeria) between 2005 and 2007. Methicillin resistance was detected by oxacillin and cefoxitin discs and PBP2a test, and then confirmed by mecA PCR. The SCCmec complex types were determined by real time PCR. The analysis showed that 50 isolates were hospital acquired (HA-MRSA) and 14 were community-acquired (CA-MRSA). SCCmec type IV and V (traditionally attributed to CA-MRSA) were harbored by both HA-MRSA and CA-MRSA, while SCCmec type I, II and III were not recorded. These findings motivate more investigations to be carried on HA-MRSA in our hospital and other national health care centers.

Keywords: Algeria; Algérie; MRSA; SARM; SCCmec; Staphylococcus aureus.

MeSH terms

  • Algeria
  • Bacterial Proteins / genetics*
  • Bacterial Typing Techniques
  • Chromosomes, Bacterial*
  • Cloning, Molecular
  • Community-Acquired Infections / microbiology*
  • Cross Infection / microbiology*
  • Hospitals, Military
  • Humans
  • Methicillin Resistance / genetics*
  • Methicillin-Resistant Staphylococcus aureus / genetics*
  • Methicillin-Resistant Staphylococcus aureus / isolation & purification
  • Microbial Sensitivity Tests
  • Penicillin-Binding Proteins

Substances

  • Bacterial Proteins
  • Penicillin-Binding Proteins
  • mecA protein, Staphylococcus aureus